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# GMAT

## If [z] denotes the least integer greater than or equal to z and [z2] = 2, which of the following could be the value of [z]?I. 2II. 1III. -2a)I onlyb)II onlyc)III onlyd)I and II onlye)II and III onlyCorrect answer is option 'A'. Can you explain this answer?

SRI BISWAJIT KAMAN answered  •  33 minutes ago
Given:
• The function [z]
• [z2] = 2
To find: Can [z] be {2, 1, -2}?
Approach:
1. To find which values of [z] are possible and which are not, we need to first know the range of possible values of z. Once we know what z can be, we’ll be able to find what [z] can be.
2. We’ll get an idea of the possible values of z from the fact that [z2] = 2
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MANIAR DHVANIL DHARMESHBHAI asked   •  15 minutes ago

## Using ratings of more than 15,000 undergraduate students for different introductory level courses, a recently published paper concludes that tenured professors don’t enhance student learning as much as non-tenured professors do. However, concluding that the tenure system (i.e. giving a professor a contractual right to keep the job for life) is counterproductive is clearly unwarranted since ___________________________________Which of the following, if true, most logically completes the above argument?... more

ARJUN JAGMOHAN SINGH answered  •  33 minutes ago
Using ratings of more than 15,000 undergraduate students for different introductory level courses, a recently published paper concludes that tenured professors don’t enhance student learning as much as non-tenured professors do. However, concluding that the tenure system (i.e. giving a professor a contractual right to keep the job for life) is counterproductive is clearly unwarranted since ___________________________________
... more

Nayana Kowshik asked   •  56 minutes ago

## The prevailing theory of our Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moon's crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage supports which of the following statements?... more

KHALAK SINGH answered  •  33 minutes ago
Passage Analysis
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## To maximize profits, an employer should control his or her environment in a factory, shop, or office and make sure that examples of energy and efficiency are numerous enough to catch employee attention and establish an atmosphere of industry. In the workplace, there are instances in which it would be in the mutual interest of the employer and the employees to increase the speed of work, but conditions may limit or forbid the use of pace-setters. In construction work and in some of the industries, where there are minute subdivisions of operations and continuity of processes, this method of increasing efficiency is very commonly applied with the use of time cards and software. In many factories, however, such an effort to “speed up” production might stir resentment, even among the workers paid at a fixed rate for each unit produced or action performed, and have an effect exactly opposite to that desired. The alternative, of course, is for the employer to secure unconscious pace setting by providing incentives for the naturally ambitious men and women in the way of a premium or bonus system or other reward for above-average efficiency.Accordingly, to take advantage of the benefits of conscious or voluntary imitation, workers must be provided with examples that appeal to them as admirable and inspire the wish to emulate them. A common application of this principle is seen in the choice of department heads, foremen, and other bosses. Invariably these people win promotion by industry, skill, and efficiency greater than that displayed by their direct peers, or by mastery of their skills that enables them to show their less efficient peers how any and all operations should be conducted. This focusing of attention upon individuals worthy of imitation has been carried much farther by various companies. Some create weekly or monthly papers published primarily for circulation within the organization to record every incident reflecting unusual skill, initiative, or personal power in an individual member of the organization. A big order closed, a difficult contract secured, a complex or delicate operation performed in less than the usual time, a new personal record in production, the invention of an unproved method or machine—whatever the achievement, it is described and glorified, its perpetrator praised and held up for emulation. This, indeed, is one of the methods by which the larger sales organizations have obtained remarkable results.The author is primarily concerned with... more

TEJUS answered  •  33 minutes ago
Passage Analysis
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Ashwitha K S asked   •  1 hour ago

## At the end of the day, February 14th, a florist had 120 roses left in his shop, all of which were red, white orpink in color and either long or short-stemmed. A third of the roses were short-stemmed, 20 of which werewhite and 15 of which were pink. The percentage of pink roses that were short-stemmed equaled thepercentage of red roses that were short-stemmed. If none of the long-stemmed roses were white, whatpercentage of the long-stemmed roses were red?a)20%b)25%c)50%d)75%e)80%Correct answer is option 'B'. Can you explain this answer?

KOKANI MANOJBHAI answered  •  34 minutes ago
For an overlapping set problem we can use a double-set matrix to organize our information and solve.  The boldfaced values were given in the question. The non-boldfaced values were derived using the fact that in a double-set matrix, the sum of the first two rows equals the third and the sum of the first two columns equals the third.  The variable p was used for the total number of pink roses, so that the total number of pink and red roses could be solved using the additional information given in the question.

The question states that the percentage of red roses that are short-stemmed is equal to the percentage of pink roses that are short stemmed, so we can set up the following proportion:

This means that there are a total of 75 pink roses and 25 red roses.   Now we can fill out the rest of the double-set matrix:

Now we can answer the question.  20 of the 80 long-stemmed roses are red, or 20/80 = 25%.

## The area of a rectangle is 28 square centimeter. What is the perimeter of the rectangle?(1) If the length of the rectangle is increased by 10 centimeter and the breadth is decreased by 5 centimeter, the perimeter of the rectangle is eight times the original length of the rectangle.(2) If the length of the rectangle is increased by 350% and the breadth is increased to 350% of the original breadth, the perimeter of the rectangle is 63 centimeters more than the original perimeter of the rectangle.... more

NALIN KUMAR SINGH answered  •  34 minutes ago
Steps 1 & 2: Understand Question and Draw Inferences
Given:
Let the length and breadth of rectangle be L and B respectively
• LB = 28…..............................................(1)
To find:  The value of 2(L+B)
• To find perimeter, we need to know the value of L and B.
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ARJUN JAGMOHAN SINGH asked   •  2 hours ago

## In a certain group of women, 70 percent of the women were employed and 25 percent did not have a graduate degree. Which of the following statements cannot be true? No woman in the group who had a graduate degree was unemployed Less than half of the women in the group were employed and had a graduate degree The number of unemployed women with a graduate degree was 50 percent greater than the number of employed women without a graduate degreea)I onlyb)II onlyc)III onlyd)I and III onlye)II and III onlyCorrect answer is option 'A'. Can you explain this answer?

NAVEEN answered  •  11 hours ago
Given:
• The Women in the group are divided into groups based on 2 parameters:
• Employment (Employed, Unemployed)
• So, the given information can be represented in a table as follows:
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Tapas Swain asked   •  2 hours ago

## A box contains 26 blocks, each listing a unique English alphabet.  If 3 blocks are picked at a time, what is the probability that all of them are vowels?  a)b)c)d)e)None of the aboveCorrect answer is option 'B'. Can you explain this answer?

ARVIND VITTHAL KUDALKAR answered  •  11 hours ago
If three alphabets are selected at once from all the alphabets, we have to find the probability that all the three alphabets are vowels. This is equivalent to:

Step B: Find probabilities of individual events
Event A:

Now, as we know that picking things together is equivalent to picking things one by one without replacement. So, when one vowel is picked out of the 26 alphabets, we are left with a total of 25 alphabets including 4 vowels.
Event B:
Now, since two vowels are picked out of the 26 alphabets, we are left with a total of 24 alphabets including 3 vowels.
Event C:
Step C: Plug all P(Events) in the main equation

ARVIND VITTHAL KUDALKAR asked   •  2 hours ago

## A soccer team played 25% more matches year-on-year in the second year of its formation. It won 84% of the matches it played in the second year, which was an improvement of 5% over the percentage of matches won in the first year. In the third year, the team played 4% fewer matches year-on-year but lost only 12.5% of the matches it played, which was one less than the number of matches lost by the team in the second year. Which of the following statements must be correct? The team lost the same number of matches in the first yea  and the second year The team won the same number of matches in the second year and the third year The team played five more matches in the third year than the first year... more

NISHANK RAGHUWANSHI answered  •  11 hours ago
Given:
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## Three persons named A, B and C work in succession to build a machine. At first, Person A works alone and builds 1/3rd of the machine and then leaves. After person A leaves, person B works alone and builds 1/4th of the remaining machine and then leaves. After person B leaves, person C works alone and builds 1/5th of the remaining machine and then leaves. What fraction of the machine remains to be built?a)1/5b)2/5c)3/7d)13/60e)5/8Correct answer is option 'B'. Can you explain this answer?

TANISHA KESHRI answered  •  11 hours ago
Step 1: Question statement and Inferences
Assume the amount of work, which is to build the machine, be M. The work has been done in stages.
Step 2: Finding required values
Work done by
Note that ‘B’ finishes a fraction of the remaining work. Therefore, we must the find work remaining at this stage.
Remaining work =
Work done by B =
Note that ‘C’ finishes a fraction of the remaining work. Therefore, we must find the work remaining at this stage.
Remaining work =
Work done by C = 1th/5   of remaining work
Remaining work =
Step 3: Calculating the final answer
The fraction of machine that remains to be built =RemainingworkTotalwork

Blue Crystal asked   •  2 hours ago

## In the year 1885, the Eiffel firm, which was named after the French engineer and architect Gustave Eiffel and which had extensive experience in structural engineering, undertook a series of investigations of tall metallic piers based upon its recent experiences with several railway viaducts and bridges. The most spectacular of these was the famous Garabit Viaduct, which carries a railroad some 400 feet above the valley of the Truyere in southern France. The design of this structure was the inspiration for the design of a 395-foot pier, which, although never incorporated into a bridge, is said to have been the direct basis for the Eiffel Tower. Preliminary studies for a 300-meter tower were made with the intention of showcasing it in the 1889 fair called Exposition Universelle. With an assurance born of positive knowledge, Eiffel in June of 1886 approached the Exposition commissioners with the project. There can be no doubt that only the singular respect with which Eiffel was regarded not only by his profession but by the entire nation motivated the Commission to approve a plan which, in the hands of a figure of less stature, would have been considered grossly impractical.Between this time and the commencement of the Tower’s construction at the end of January 1887, there arose one of the most persistently annoying of the numerous difficulties, both structural and social, which confronted Eiffel as the project advanced. In the wake of the initial enthusiasm—on the part of the fair’s Commission that was inspired by the desire to create a monument to highlight French technological achievement, and on the part of the majority of French people by the stirring of their imagination at the magnitude of the structure—there grew a rising movement of disfavor. At the center of this movement was, not surprisingly, the intelligentsia, but objections were made by prominent French people from all walks of life.The most interesting point to be noted in a retrospection of this often violent opposition is that, although every aspect of the Tower was attacked, there was remarkably little criticism of its structural feasibility, either by the engineering profession or, as seems traditionally to be the case with bold and unprecedented undertakings, by large numbers of the technically uninformed population. True, there was an undercurrent of what might be characterized as unease by many property owners in the structure’s shadow, but the most obstinate element of resistance was that which deplored the Tower as a mechanistic intrusion upon the architectural and natural beauties of Paris. This resistance voiced its fury in a flood of special newspaper editions, petitions, and manifestos signed by such lights of the fine and literary arts as De Maupassant, Gounod, Dumas fils, and others.Which faction does the author refer to when he mentions “undercurrent” in the last paragraph?... more

EMILY JOSE answered  •  11 hours ago
Passage Analysis
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## In general, psychology is the study of human thought and consciousness and includes everything from the biological way in which cognitive processes occur to why people behave in certain ways. Sociology, on the other hand, is the study of society and how people interact with each other in different ways. The major differences between psychology and sociology typically concern the focal points of each field and how those foci are studied. In psychology, for example, the focus of research typically involves understanding the human cognitive process and how the brain functions in general. In sociology, however, there is a great deal of importance placed on the role that society has in the formation of human thought and action. Even though sociology does include how people think with relation to each other, human thought is not necessarily the sole focus. Also, since it studies the interactions between people, sociology can lay much more importance on actions than psychology does, stressing the importance of human behavior over cognitive responses or processes. There are some ways in which both psychology and sociology are similar, however, such as the ways in which the fields cross into each other. Social psychology, for example, is quite similar to sociology in that it focuses on how people interact and how society affects the thoughts and mental activities of individual people. Explorations within sociology on how social interactions can be based on various psychological principles can also connect the two disciplines. Ultimately, someone interested in different facets of psychology and sociology is likely to study both fields and find that there are numerous ways in which they can relate and enhance each other.Which of the following best captures the function of the second paragraph?... more

DEBLEENA PAL answered  •  11 hours ago
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MANIAR DHVANIL DHARMESHBHAI asked   •  2 hours ago

## In the figure above, AD bisects angle BAE and AE bisects angle CAD. Also, the line XY and AC are parallel to each other. Find the value of ∠DAE.(1)  ∠BAC = 60o(2) ∠XOB = 120 a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. c)BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. d)EACH statement ALONE is sufficient. e)Statements (1) and (2) TOGETHER are NOT sufficient.Correct answer is option 'D'. Can you explain this answer?

Steps 1 & 2: Understand Question and Draw Inferences
We are given that in the figure line AD bisects   and the line AE bisects angle  . We have to find the value of the  .
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SANCHITA SINHA asked   •  4 hours ago

## A firm’s default risk, the measurement of the chances of the event in which the company will be unable to make the required payments on its debt obligations, reflects not only the likelihood that the firm will have bad luck but also the risk that the firm’s managerial decisions will lead the firm to default. Such management risk occurs because the impact of management on the firm’s value is uncertain, and this uncertainty affects the market’s perception of a firm’s risk.  Uncertainty about management is likely to be the highest when there is a new management team and should decrease over time as management’s ability becomes known more precisely. In particular, when the new CEO is not considered an “heir apparent” prior to getting the position, or when he comes from outside of the company, or when the new CEO is younger, the market is expected to perceive relatively high uncertainty about the CEO’s ability or future actions. Accordingly, it comes as no surprise that the CDS spread, a measure of a firm’s expected default risk, is about 35 basis points higher when a new CEO takes office than three years into his tenure. The CEO, however, is not the only member of the management team who is relevant for decision making in the firm. Chief Financial Officers (CFOs) have a large role in financial decision-making, so uncertainty about new CFOs could also affect the firm’s default risk and cost of borrowing.Now, a central feature of financial markets is that the interest rate a firm pays on debt increases with an increase in the market’s perception of the firm’s risk. This risk occurs because of factors that affect the value of the firm’s underlying assets and because of uncertainty about how these assets will be managed. The literature on debt pricing typically does not distinguish between these types of underlying risks. However, all risks, including those generated by uncertainty about management, affect the likelihood of default. Consequently, a rational market should incorporate managerial-generated uncertainty into its assessment of a firm’s risk when pricing its securities. Also since uncertainty about management affects firms’ costs of borrowing and consequently their financial policies, the value of maintaining transparency in managerial policies and communicating them to the marketplace should be realised.Which of the following statements would the author most likely agree with?... more

PUNITH KAMINI S answered  •  yesterday
Passage Analysis
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SATYAM SINGH asked   •  4 hours ago

## In general, psychology is the study of human thought and consciousness and includes everything from the biological way in which cognitive processes occur to why people behave in certain ways. Sociology, on the other hand, is the study of society and how people interact with each other in different ways. The major differences between psychology and sociology typically concern the focal points of each field and how those foci are studied. In psychology, for example, the focus of research typically involves understanding the human cognitive process and how the brain functions in general. In sociology, however, there is a great deal of importance placed on the role that society has in the formation of human thought and action. Even though sociology does include how people think with relation to each other, human thought is not necessarily the sole focus. Also, since it studies the interactions between people, sociology can lay much more importance on actions than psychology does, stressing the importance of human behavior over cognitive responses or processes. There are some ways in which both psychology and sociology are similar, however, such as the ways in which the fields cross into each other. Social psychology, for example, is quite similar to sociology in that it focuses on how people interact and how society affects the thoughts and mental activities of individual people. Explorations within sociology on how social interactions can be based on various psychological principles can also connect the two disciplines. Ultimately, someone interested in different facets of psychology and sociology is likely to study both fields and find that there are numerous ways in which they can relate and enhance each other.Which of the following would the author most likely agree with?... more

SONAWANE PRIYANKA SANJAY answered  •  yesterday
Passage Analysis
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## Many small companies expand their client bases not so much by aggressive marketing as by networking and word of mouth.a)So much by aggressive marketing as byb)As much with marketing aggressively as withc)Much by aggressive marketing that instead byd)So aggressively with marketing  but withe)In marketing aggressively but rather inCorrect answer is option 'A'. Can you explain this answer?

BHEEMASOLA HEMA SAI answered  •  yesterday
The idiom is not so much_____ as ______, and (A) is parallel; not so much by…as by.

Anand Yarramilli asked   •  5 hours ago

## A certain university spends all the money donated by The Goodwill Foundation in a certain year to fund three research projects P, Q and R. Project P receives a funding of \$40,000. Both projects P and Q receive 100% more funding than Project R. The donation made by The Goodwill Foundation to the university is 25% of the total donation received by the university during the year. If the university invests in projects P, Q and R only from the money received from The Goodwill Foundation, then what is the total amount, in dollars, of donation that is not received by the university from The Goodwill Foundation?a)50000b)100000c)200000d)300000e)400000Correct answer is option 'D'. Can you explain this answer?

PATEL KRISTAL MAHENDRABHAI answered  •  yesterday
Step 1: Question statement and Inferences
The first step will be to draw the tree structure that depicts the question statement.
The next step will be to find the value at each node and branch of the tree.

Step 2: Finding required values
Let the money donated by The Goodwill Foundation be \$x
It is given that
Amount donated by Goodwill Foundation =25% of Total Donation
Total Donation=4x

So, Donations by others=4x–x=3x
We need to find the value of
We are also given that
Also,
Thus,x=40,000 + 40,000 + 20,000 = \$100,000
Step 3: Calculating the final answer
Donation that is not received by the university from The Goodwill Foundation = 3x = \$300,000

## A dance group consists of 6 men and 7 women.  There are 3 married couples in the group.  If 2 people have to be selected – 1 man and 1 woman, what is the probability that one of the couples will be selected?a)1/14b)1/7c)1/6d)1/3e)1/2Correct answer is option 'A'. Can you explain this answer?

Step 1: Define the Event
Consider 6 men in the group to be M1 M2 M3 M4 M5 M6
Consider 7 women in the group to be W1 W2 W3 W4 W5 W6 W7
The group has 3 married couples.
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HARSH VARDHAN asked   •  6 hours ago

## In triangle PQR length of the side QR is less than twice the length of the side PQ by 2 cm. Length of the side PR exceeds the length of the side PQ by 10 cm. The perimeter is 40 cm. The length of the smallest side of the triangle PQR is :a)6 cmb)8 cmc)7 cmd)10 cme)9 cmCorrect answer is option 'B'. Can you explain this answer?

In Δ PQR,
QR +2 = 2PQ
QR = 2PQ - 2 ------- (2)
PR = PQ + 10 ----- (2)
Perimeter = 40 m
PQ + QR + Rp = 40
Putting the value of PQ and QR from equation (1) and (2),
Pq + 2PQ - 2 + PQ +10 = 40
4PQ = 32
PQ = 8 cm which is the smallest side of the triangle.

SANCHITA SINHA asked   •  6 hours ago

## A light bulb manufacturer ships 10 boxes consisting of 100 light bulbs each to a retailer. The manufacturer bills the retailer at a rate of \$10 per bulb with a condition that the defective light bulbs may be returned to the manufacturer for full refund. The probability of a light bulb in a box being defective is 20 percent. If the manufacturer makes a profit of 100 percent on each non-defective light bulb and he has to bear a return shipment cost of \$2.5 per defective light bulb, which he treats as lost revenue, what is the profit percentage of the manufacture on the whole transaction?a)30%b)33%c)45%d)50%e)60%Correct answer is option 'D'. Can you explain this answer?

Given:
• Number of light bulbs in a box = 100
• Number of boxes shipped = 10
• So, Total light bulbs shipped = 10*100 = 1000
• Selling price of each non-defective light bulb = \$10
• Profit % on each non-defective light bulb = 100%
• Probability(Defective Light Bulb) = 0.20
• Return shipment cost of each defective light bulb = \$2.50
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Aashita Talwar asked   •  6 hours ago

## Alex invested in a Bumper scheme that pays an interest at an annual rate of 40% compounded quarterly. What is the minimum that Alex needs to invest to earn at least \$210 in interest in 6 months?a)800b)1000c)1200d)1400e)1600Correct answer is option 'B'. Can you explain this answer?

Steps 1 & 2: Understand Question and Draw Inferences
Given: x ≠ 0, y ≠ 0
To find:  y = ?
Step 3: Analyze Statement 1 independently
Equating the powers of 2 on both sides:
2x = 6 – 4y
x + 2y = 3
1 Linear Equation with 2 unknowns. Not sufficient to find a unique value of y.
Step 4: Analyze Statement 2 independently
Not sufficient to find a unique value of y.
Step 5: Analyze Both Statements Together (if needed)
• From Statement 1: x + 2y = 3 . . . (1)
• From Statement 2: xy = -2
Substituting (2) in (1):
• This quadratic equation gives 2 values of y
• The only constraint on y: y ≠ 0
• Since 0 is not a root of the above quadratic equation, this constraint doesn’t help eliminate one of the two roots of y

• Thus, 2 values of y are obtained from the combination of the two statements

Not sufficient to obtain a unique value of y.

Step 1 & 2: Understand Question and Draw Inference
Given: Integer z > 0
To find: Number of factors of z
• Let z = P *P *P * . . . , where P , P , P etc. are prime numbers and a, b, c . . . are non-negative integers
• So, number of factors of z = (a+1)*(b+1)*(c+1)* . . .
• So, in order to be able to apply the formula for number of factors, we need to know the prime-factorized form of z
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Vy Thanh asked   •  6 hours ago

## A dealer bought a merchandise at a% less than its marked price and then sold at b% less that its marked price. What was the value of the discount offered to customers?(1) a = 6%(2) The dealer made a profit of 5%a)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.b)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. c)BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. d)EACH statement ALONE is sufficient. e)Statements (1) and (2) TOGETHER are NOT sufficient.Correct answer is option 'E'. Can you explain this answer?

MONALI YOGESHKUMAR DANGI answered  •  yesterday
Steps 1 & 2: Understand Question and Draw Inferences
In this question, both CP and SP are expressed in terms of the marked price.

Let the marked price of the item be M
The cost price at which the merchant had bought the item was a % less than the marked price
=> CP = M – a % of M
=> CP = (1 - a/100) M
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## Logical arguments are usually classified as either deductive or inductive, depending on the process used to arrive at them. In the process of deduction, you begin with some statements, called premises, which are assumed to be true, and you then determine what else would have to be true if the premises are true. For example, in mathematics you can begin with some axioms and then determine what you can prove to be true given those axioms are true. With deduction you can provide absolute proof of your conclusions, since your premises are considered correct. The premises themselves, however, remain unproven and unprovable; they must be accepted on face value, or by faith, or for the purpose of exploration.On the other hand, in the process of induction, you begin with some data, and then determine what general conclusion(s) can logically be derived from that data. In other words, you determine what theory or theories could explain the data. For example, you note that the probability of becoming schizophrenic is greatly increased if at least one parent is schizophrenic, and from that you conclude that schizophrenia may be inherited. That is certainly a reasonable hypothesis given the data. Note, however, that induction does not prove that the theory is correct. There are often alternative theories that are also supported by the data. For example, the behavior of the schizophrenic parent may cause the child to be schizophrenic, not the genes. What is important in induction is that the theory does indeed offer a logical explanation of the data. To conclude that the parents have no effect on the schizophrenia of the children is not supportable given the data, and would not be a logical conclusion.Both deduction and induction by themselves are inadequate for a scientific approach. While deduction gives absolute proof, it never makes contact with the real world; there is no place for observation or experimentation - no way to test the validity of the premises. And, while induction is driven by observation, it never approaches actual proof of a theory. Accordingly, a synthesis of these two logical approaches is required for an actual scientific method.Which one of the following statements can be inferred about the induction process of arriving at a logical argument?... more

The author’s primarily concerned with
Passage Analysis
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SHIVANI SRIVASTAVA asked   •  6 hours ago

## A team of researchers has been able to successfully study the highly complex molecular structure of mitoribosomes, which are the ribosomes of mitochondria. Ribosomes are found in the cells of all living organisms, and they serve as a primary location for biological protein synthesis, but certain organisms such as fungi, plants, animals, and humans contain much more complex ribosomes than bacteria do. In organisms with complex cells, ribosomes can also be divided into two types: those in the cytosol -- which comprises the majority of the cell -- and those found in the mitochondria or "power houses" of cells. Mitochondria are found only in eukaryotes. Every ribosome consists of two subunits. The smaller subunit uses transfer ribonucleic acids to decode the genetic code, which is stored in the DNA, it receives in the form of messenger ribonucleic acids, while the larger subunit joins the amino acids delivered by the transfer ribonucleic acids together like a string of pearls. Since they are found only in small amounts and are difficult to isolate, mitochondrial ribosomes or mitoribosomes are particularly difficult to study.  But because of the recent technical advances in cryo-electron microscopy and the development of direct electron detection cameras that can correct for specimen motion during the exposure, it recently became possible to capture images of biomolecules at a resolution high enough to capture the details, especially those of the peptidyl transferase centre (PTC).This research is of special importance to producing the right kind of antibiotics for humans. PTC is where the amino acid building blocks are combined, leading to protein synthesis. As per the researchers, this process of synthesizing proteins is medically relevant as the tunnel through which the proteins pass, after being synthesized, is a target for specific antibiotics. The antibiotic blocks the tunnel, preventing the proteins that have just been synthesized from leaving the tunnel. However, for an antibiotic to be used in humans, it must not attack human ribosomes and should inhibit protein synthesis only in the ribosomes of bacteria.  The problem arises since mitochondrial ribosomes resemble those of bacteria, which is why certain antibiotics also interfere with mitoribosomes, possibly leading to serious side effects. The findings of the research will make it possible in the future to design antibiotics that inhibit only bacterial and not mitochondrial ribosomes, the one basic requirement for using them in clinical applications.The author is primarily concerned with... more

Passage Analysis
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Vy Thanh asked   •  6 hours ago

## If each term in the sum a1 + a2 + a3 + ... +an is either 7 or 77 and the sum is equal to 350, which of thefollowing could equal to n?a)38b)39c)40d)41e)42Correct answer is option 'C'. Can you explain this answer?

Sunny Amaid asked   •  7 hours ago

## What is the cube root of w?1) The 5th root of w is 642) The 15th root of w is 4a)Exactly one of the statements can answer the questionb)Both statements are required to answer the question c)Each statement can answer the question individuallyd)More information is required as the information provided is insufficient to answer the questionCorrect answer is option 'C'. Can you explain this answer?

RAKESH KARTHIK asked   •  7 hours ago

## If 36x = 8,100, what is the value of (3x – 1)3?a)90b)30c)10/3d)10/9Correct answer is option 'C'. Can you explain this answer?

SONAWANE PRIYANKA SANJAY asked   •  8 hours ago

Jayanti Puspita Sari asked   •  8 hours ago

## The number of awards given this year to psychologists accentuate the significant gains being made in the study of the psyche of human beings.a)accentuate the significant gains being madeb)accentuates the significance of  gains being madec)accentuates the number of significant gains being maded)accentuates the significant gains being madeCorrect answer is option 'D'. Can you explain this answer?

Nitesh Bhatia asked   •  8 hours ago

## If n is a positive integer greater than 2, what is the greatest prime factor of 3n + 3n + 3n – 3n-2?a)3b)5c)7d)11e)13Correct answer is option 'E'. Can you explain this answer?

SANCHITA SINHA asked   •  8 hours ago

## Although covered in about 11 inches of snow, aviation officials said that conditions on the runway at the time of the emergency landing was acceptable.a)aviation officials said that conditions on the runway at the time of the emergency landing wasacceptableb)the runway conditions during the emergency landing were acceptable according to aviationofficialsc)according to aviation officials, the runway was in acceptable condition during the time of theemergency landingd)the runway was in acceptable condition during the emergency landing, according to aviation officialse)aviation officials said that conditions on the runway at the time of the emergency landing wereacceptableCorrect answer is option 'D'. Can you explain this answer?

Ashwitha Kss asked   •  9 hours ago

## In the next few weeks, both the Wizius Careers and the Procation is planning to release independent, and possibly conflicting, reports about online testing.a)both the Wizius Careers and the Procation is planning to release independent, and possibly conflicting,b)the Wizius Careers and the Procation are planning to release independent, and possibly conflicting,c)both the Wizius Careers and the Procation are planning to release independent, and possibly conflicting,d)both the Wizius Careers as well as the Procation are planning to release independent, and possibly conflicting,Correct answer is option 'C'. Can you explain this answer?

BHEEMASOLA HEMA SAI asked   •  9 hours ago

## Z=2a×5b×7cA positive integer Z can be expressed in terms of its prime factors as above, where a, b and c are positive integers. Is 3|a−b|<9?(1) Z is divisible by 40 but not by 50(2) Za−b=26×52×74... more

Jaitavi asked   •  9 hours ago

## Individual studies and experiments the world over have shown that a strong correlation exists between music and mood --- listening to a particular kind of music impacts the mood of the listener. In fact studies have also shown that, in everyday life, music is primarily used for mood and emotion regulation. Indeed, one of the reasons music is able to transcend the barriers of language and garner universal appeal is the emotional response it evokes in its listeners. However, not all people respond similarly to the same kind of music.A new study shows that listening to the same piece of sad music can actually make some people happy while others sad. Clearly, the difference in the response generated is due to the difference or the lack of the same in the perceived and the induced emotions experienced by the participants. Perceived emotion is defined as the act of sensing the emotional content of the stimuli whereas induced emotion is the emotion felt by the receiver after being subjected to the stimuli.In the study, the participants with a higher level of exposure to and knowledge of music were the ones who reported being happy after listening to the music, while others reported as being sad. These participants rated the piece of sad music as highly unpleasant on the scale of perceived emotions; however, their induced emotion score was really low for the level of unpleasantness experienced by them and hence did not match with their perceived emotions score. For this reason, these participants felt that they could enjoy the piece of music without feeling sad and hence reported their emotional state as closer to being happy.However, the findings of the study do not necessarily suggest that the perceived emotion score by the not so musically literate was low. It could just mean that either their perceived and induced emotion scores coincided or that the difference between the two was insignificant.Which of the following is the function of the final paragraph in the passage?... more

Eva Ohagwam asked   •  11 hours ago

## Why is the video not in English? I don't understand India language pls. Related: Everything About GMAT EXAM in INDIA | GMAT vs CAT exam | GMAT Exam Details | GMAT, CAT| MBA Abroad?

NEHA PAUL asked   •  11 hours ago

## 2/5more water by weight is added to a salt-sugar-water solution. Before the addition of the water, what is the ratio of the weight of the water to the weight of the solution? Due to the addition of water, the ratio of the weight of sugar in the solution to the weight of the solution decreases from . After the addition of water, the ratio of the weight of water in the solution to the weight of the solution becomes 7/10... more

PRAVEEN KUMAR asked   •  12 hours ago

## Set A consists of 15 positive integers. Is the mean of set A equal to the median of set A?(1) The integers in set A, when arranged in the order of increasing magnitude, are not evenly spaced(2) If an integer x, which is equal to the mean of set A, is added to the set, the median of the set does notchange... more

NISHA THOKE asked   •  12 hours ago

## The stock price of companies that have high earnings per share growth increases fast.  Because "CEO compensation is tied to the increase in stock price, many companies use cash from operations to buy back shares to increase the overall earnings per share."  However, in practice, this strategy is often counterproductive as this leaves little cash to be invested in developing new products and services. In the long run this reduces the overall earnings per share and the stock price.In the passage above, the two bold faced portions play the following roles:... more

Chandna Arora asked   •  12 hours ago

## A recent study has cited overcomplexity, increasing worker mobility between companies, andpoor financial planning in estimating that less than half of eligible American workers hadcontributed the maximum amount to their employer-offered retirement plans.... more

Pratul Garg asked   •  13 hours ago

## What is the sum of all values of x that satisfies the equation: a)20b)24c)28d)32e)36Correct answer is option 'C'. Can you explain this answer?

Sudhanshu Bhatnagar asked   •  13 hours ago

## The government has constituted a six-member team to investigate the case of the missing criminal that fled the prison in Lucknow to go to Goa and has subsequently applied for asylum there.a)to investigate the case of the missing criminal that fled the prison in Lucknow to go to Goa and has subsequently applied for asylum there.b)for investigating the case of the missing criminal, who fled the prison in Lucknow to go to Goa and subsequently applied for asylum there.c)to investigate the case of the missing criminal, having fled the prison in Lucknow to go to Goa and subsequently applying for asylum there.d)to investigate the case of the missing criminal, who fled the prison in Lucknow to go to Goa and subsequently applied for asylum there.Correct answer is option 'D'. Can you explain this answer?

SHWETA PATWARI asked   •  15 hours ago

## Last year, the economic downturn affected economies throughout the world. Several million people across nations lost their jobs. Accordingly, the tourism business in the country of Daland, a popular international tourist destination, was severely affected on account of limited business from foreign tourists. However, even though most countries are still trying to recover from the recession, hoteliers in Daland have found that the business this year is back to its original form.Which of the following, if true, most helps to explain the change between the first and the second year of the recession in the hotel business?... more

HARSH VARDHAN asked   •  15 hours ago

## Which of the following inequalities is an algebraic expression for the shaded part of the number line above?a)|x - 1| <= 4b)|x +1| <= 4c)|x| <= 5d) |x - 2| <= 3e)|x| <= 3Correct answer is option 'B'. Can you explain this answer?

ASHISH KUMAR TIWARI asked   •  16 hours ago

## List A contains 16 distinct odd integers and 9 distinct even integers such that the average (arithmetic mean) of List A is 13.84. If each odd integer is doubled in magnitude, what is the new average (arithmetic mean) of List A?(1) The average (arithmetic mean) of the even integers in List A is 10(2) Before each odd integer is doubled in magnitude, the smallest odd integer in List A is 1 and the largest odd integer in List A is31.... more

Meghraj Mahanawar asked   •  17 hours ago

## Which of the following can be the least common multiple of two distinct integers a and b? a)ab)bc)a - bd)a + bCorrect answer is option 'D'. Can you explain this answer?

Anshu Karki asked   •  17 hours ago

## Three digits have been removed from each of the following numbers.if n= 25 , which of the number is equal to 3×2^n-1? a.47,_ _ 6,_ 23 b.47,_ 6-,32 c.49,2,64 d.49,2,36 e. 50,1,48?

PATEL KRISTAL MAHENDRABHAI asked   •  17 hours ago

## if  2x2 = 24 -x4  and  which of the following can be the value of x?a)I onlyb)II onlyc)III onlyd)I, II and IIIe)None of the aboveCorrect answer is option 'B'. Can you explain this answer?

ARUN SINGH BAGHEL asked   •  18 hours ago

## If x and y are integers, is xy even?1) x = y + 12)... ... more x/y is an even integera)Exactly one of the statements can answer the questionb)Both statements are required to answer the questionc)Each statement can answer the question individuallyd)More information is required as the information provided is insufficient to answer the questionCorrect answer is option 'C'. Can you explain this answer?

Vy Thanh asked   •  18 hours ago

## A merchant sold 32 antique items for \$28800. If his profit margin was 20%, then his average cost per antique item wasa)\$720b)\$750c)\$900d)\$1080e)\$1125Correct answer is option 'B'. Can you explain this answer?

Vy Thanh asked   •  18 hours ago

## If x and y are prime integers and x < y, which ... ... moreof the following cannot be true??a)x is evenb)x+y is oddc)y + xy is evend)2x + y is evenCorrect answer is option 'D'. Can you explain this answer?

DAS KANCHANBEN RAMESHVARBHAI asked   •  19 hours ago

## A certain farm has a group of sheep, some of which are rams (males) and the rest ewes (females). The ratio of rams to ewes on the farm is 4 to 5. The sheep are divided into three pens, each of which contains the same number of sheep. If the ratio of rams to ewes in the first pen is 4 to 11, and if the ratio of rams to ewes in the second pen is the same as that of rams to ewes in the third, which of the following is the ratio of rams to ewes in the third pen?a)8/7b)2/3c)1/2d)3/12e)1/6Correct answer is option 'A'. Can you explain this answer?

MEGHA SONY asked   •  19 hours ago

## Roxie invested \$2000 in an account that yielded a fixed rate of annual return compounded annually throughout the duration ofinvestment. If she earned a total interest of \$4000 in 6 years, after how many years of investment did she earn a total interest of\$52000?a)18b)28c)30d)56e)Cannot be determinedCorrect answer is option 'A'. Can you explain this answer?

Agraja Jqin asked   •  19 hours ago

## Although postcolonial theory does not propose a simple causal relation between literature and political action, it nonetheless views literature as an enabler of nationalism and in turn political action: literature imagines the community of the nation, giving it a virtually mythical status. The power of the national imaginary to inspire political action is never in doubt, but the precise mechanisms by which this happens or whether indeed any kind of direct causality is involved remains unclear. It may very well be that literature and political action are reciprocating parts of a complex process for which such questions are peripheral. An example of such reciprocation is an early play by Yeats, The King’s Threshold (1904), in which an ancient Irish poet goes on hunger strike to protest against his king.  This play might be thought to have engendered the hunger strikes Irish republicans resorted to, first during the struggle with Britain from 1916 to 1920, then in the civil war that followed as they fought against the Free State government forces, and finally in 1981 as they resisted continuing British rule in Northern Ireland. Similarly in reciprocation, when the Republican mayor of Cork, Terence MacSwiney, died in hunger strike in 1920, Yeats revised his play, and gave it a revised conclusion – a tragic ending, attributing the tragic ending as a great improvement & much more representative of the then political climate.The passage mentions the instance of death of Republican mayor of Cork, Terence MacSwiney to illustrate ... more

ARVIND VITTHAL KUDALKAR asked   •  19 hours ago

## The generally agreed upon definition of hallucinations is that they are actually perceptions in the absence of an external stimulus of the relevant sensory organ. These perceptions are accompanied by a persuasive sense of their reality. Hallucinations are not to be confused with illusions, which are misinterpretations of actual external stimuli. In other words, in the case of a hallucination, for a person hallucinating a sound for instance, the sound actually exists, but in reality it exists nowhere but in the person’s mind; however, in the case of an illusion the stimulus that caused the illusion does exist in the real world. Although hallucinations are a key diagnostic feature of schizophrenia, a mental disorder that distorts the way a person thinks, acts, expresses emotions, perceives reality, and relates to others, they can occur in individuals devoid of any physical or mental disorder.In order to understand why people hallucinate, some researchers have been studying people suffering from what is called the phantom limb syndrome, a condition in which people who have undergone amputation feel as though the missing body part were still very much present and attached to the body; for instance, it is not uncommon for a person who has lost a leg to unknowingly try to stand and walk without any external support after their surgery. One of the two main hypotheses behind the phantom limb syndrome offers an explanation that is possibly applicable to why people hallucinate in certain circumstances. As per this theory, the brain is programmed for a body where every body part is intact and in the appropriate place. Accordingly, when some signals go missing, because of the missing body part, the brain compensates for the lack of sensory input by triggering spontaneous nerve cell activity. Although this theory has limited applicability for understanding why patients such as those of schizophrenia hallucinate in conditions not deemed out of the ordinary, it is a step forward in understanding why people experience visual or auditory hallucinations when they are placed in solitary confinements; after all the different areas of the brain that were used to receiving signals through the senses start to stimulate themselves in to action. Each of the following can be inferred from the passage EXCEPT... more

Trixia San Juan asked   •  20 hours ago

## What is center of mass?

SANCHITA SINHA asked   •  22 hours ago

GAVANDE BHAGINATH KASHIRAM asked   •  yesterday

## what is politicians Related: Introduction to Multi-Source Reasoning?

KAPIL KUMAR SHARMA asked   •  yesterday

## formation of ionic bond favour?

B SHREE SHIVANI asked   •  yesterday

## A new security software authenticates a person by scanning the person’s hand and matching the information obtained from the same with the information stored in the system. However, recent laboratory tests have shown that the software recognized and authenticated people whose information in the system was stored before they recently started suffering from chemotherapy-induced acral erythema, a syndrome that is associated with pain and peeling on the palms and soles of the feet, which even leads to a loss of fingerprints. Therefore, it is likely that the security system does not use the finger-prints of a person as a metric for authentication.Which of the following would be most helpful to evaluate the argument?... more

MALI MRUNALI YASHWANT asked   •  yesterday