Balveer Singh

CSE Student

Balveer Singh
EduRev UPSC
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Punctuations - Introduction and Rules, Part 5, Verbal Aptitude
Doc | 2 pages
Past Perfect Continuous Tense - Tenses, English Grammar Basics
Doc | 1 page
CAT Past Year Question Paper - 1990
Doc | 32 pages
CAT Past Year Question Paper - 2007
Doc | 24 pages
CAT Past Year Question Paper Solution - 1990
Doc | 12 pages
CAT 2018 Slot 2: Past Year Question Paper with Solution
Doc | 82 pages
CAT Past Year Question Paper Solution - 1992
Doc | 5 pages
CAT Past Year Question Paper Solution - 1993
Doc | 13 pages
CAT Past Year Question Paper - 2001
Doc | 36 pages
CAT Past Year Question Paper - 1995
Doc | 31 pages
CAT Past Year Question Paper Solution - 1994
Doc | 14 pages
CAT Past Year Question Paper - 2002
Doc | 40 pages
CAT 2014: Past Year Question Paper with Solution
Doc | 12 pages
CAT Past Year Question Paper - 2005
Doc | 26 pages
CAT Past Year Question Paper Solution - 1996
Doc | 12 pages
CAT Past Year Question Paper - 2003
Doc | 42 pages
CAT Past Year Question Paper - 1998
Doc | 43 pages
CAT Past Year Question Paper Solution - 2007
Doc | 8 pages
CAT Past Year Question Paper - 2006
Doc | 22 pages
CAT Past Year Question Paper - 1994
Doc | 35 pages
CAT Past Year Question Paper - 2000
Doc | 44 pages
CAT Past Year Question Paper - 1993
Doc | 32 pages
CAT Past Year Question Paper Solution - 1991
Doc | 11 pages
Rules & Examples: Reading Comprehension
Doc | 6 pages
Introduction: How to prepare Reading Comprehension (RC)
Video | 27:01 min
How to solve Reading Comprehension Passages
Video | 26:50 min
Inference Based Questions: CAT Reading Comprehension
Video | 29:09 min
CAT 2015: Past Year Question Paper with Solution
Doc | 11 pages
CAT Past Year Question Paper Solution - 2000
Doc | 10 pages
CAT Past Year Question Paper - 1992
Doc | 24 pages
CAT Past Year Question Paper Solution - 1995
Doc | 10 pages
CAT 2013: Past Year Question Paper with Solution
Doc | 13 pages
CAT Past Year Question Paper - 2004
Doc | 33 pages
CAT Past Year Question Paper - 1997
Doc | 32 pages
CAT Past Year Question Paper Solution - 2005
Doc | 13 pages
CAT Past Year Question Paper with Solution - 2010
Doc | 11 pages
CAT Past Year Question Paper Solution - 2004
Doc | 12 pages
CAT Past Year Question Paper - 1991
Doc | 30 pages
CAT Past Year Question Paper Solution - 1997
Doc | 15 pages
CAT 2015: Past Year Question Paper
Doc | 16 pages
CAT 2013: Past Year Question Paper
Doc | 12 pages
CAT 2014: Past Year Question Paper
Doc | 13 pages
CAT Past Year Question Paper Solution - 1998
Doc | 15 pages
Transitive and Intransitive Verbs - English Grammar
Doc | 3 pages
CAT Past Year Question Paper Solution - 2001
Doc | 13 pages
CAT Past Year Question Paper Solution - 2002
Doc | 12 pages
CAT Past Year Question Paper - 1999
Doc | 40 pages
CAT Past Year Question Paper Solution - 2003
Doc | 13 pages
CAT Past Year Question Paper Solution - 1999.
Doc | 21 pages
Discussed Questions
Moumita Das upvoted   •  Jan 13, 2025

Which of the following is a type of intangible business property that is protected by law:
  • a)
    Acreage
  • b)
    Inventory
  • c)
    Trademark
  • d)
    Equipment
Correct answer is option 'C'. Can you explain this answer?

A trademark is a type of intangible business property that is protected by law. It can be a name, symbol, or design that identifies and distinguishes the source of the goods or services of one party from those of others. Trademarks are crucial for branding and can be legally enforced to prevent unauthorized use. An interesting additional fact is that trademarks, once registered, can provide exclus... more

Moumita Das upvoted   •  Nov 14, 2024

Read the passage and answer the questions that follow:
It is important to keep in mind how differently people thought then. People's primary concern was to avoid living an unfortunate life. Therefore, they were more likely to order their thoughts, decisions, and behaviours to promote increased life satisfaction. One of the most important things to keep in mind is individuals didn’t automatically assume that they would achieve happiness by attaining money, prestige, and or beautiful things. With great urgency, people wanted to understand how they could have an excellent soul.
Stoicism was one of the famous schools of thought during this period because the Stoics provided interesting answers to anxiety, stress, fear, and troubling questions like “What do I want out of life?” The Stoics offered an operating system that dealt with the trials of the human condition. Their ultimate answer to these issues (essentially) went: I want enduring happiness and tranquillity of mind, which comes from being a virtuous person. In summation, Stoicism was an ancient school of philosophy that taught a particular way of living. Its principal focus was how to live a virtuous life, maximize happiness and reduce negative emotions. The Stoic philosophy changed over time, shifting focus from logic and physics - to more psychological concerns like tranquillity and well-being. Also, the Stoics could never convene to affirm all of their tenants precisely, but there are certain principles at the core of the Stoic operating system.
Epictetus - A Greek Stoic Philosopher wrote, "Some things are up to us, and some are not up to us. Our opinions are up to us, and our impulses, desires, aversions-in short, whatever is our own doing. Our bodies are not up to us, nor are our possessions, our reputations, or our public offices." If we tether our happiness to things, not within our control, be it wealth, beauty, social status, or even our health, we will suffer unnecessarily. For chance, luck, randomness, or whatever one wishes to call it, plays a massive role in each person’s life. We can easily lose the external goods or accolades on which, in ignorance, we base our happiness, or even fail to attain them in the first place. But acceptance of this does not have to lead to fatalistic resignation in the assumption that because some things are out of our control, so too is our well-being. Epictetus explained that we are troubled by our judgement about things and because we can control our judgements, the quality of our life is also within our control.
The Stoics take a very different view of misfortune than most people. They expect mishaps and use them as opportunities to hone their virtues. Imagine breaking a leg and needing to sit in bed for four months while it heals. A Stoic would attempt to guide their thoughts away from useless “woe is me” rumination and focus instead on how they might do something productive while bedridden (e.g., write their first book). They would try to reframe the event as a way to cultivate their patience and become more creative. Where there is an adverse event, Stoics try not to let it ruin their tranquillity, and instead, they try to derive character-building benefits wherever possible. This is the beauty of stoicism.
 
Q. Which of the following is NOT an example of a stoic response to adversity?
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Ishita Reddy answered
The Stoics take a very different view of misfortune than most people. They expect mishaps and use them as opportunities to hone their virtues.
A stoic response to adversity would be one where a person uses adversity as an opportunity to hone his/her virtues. Instead of woefully ruminating or complaining about the misfortune, a person would start working on his/her skills or engage in some other meaningful task. The focus would be on using the misfortune as an opportunity to improve themselves.
In Option A, the person decides to work on her technical skills instead of fretting over the loss of her job. Hence, A would be counted as a Stoic response.
In Option B, the student decides to prepare for competitive examinations when he is unable to attend the classes. He makes productive use of his time in the face of adversity. Hence, B is also an example of a Stoic response.
In Option D, the textile worker mentioned starts learning hand embroidery to support herself, instead of focusing on the fact that she lost a leg. She engages in a productive activity instead of fretting over her misfortune, and hence D is also an example of a Stoic response.
Option C does not classify as a stoic response. Though the person is engaging in an activity, we cannot say that rebuilding the house is working on honing their virtues. Moreover, a house is an external possession and not internal virtue which is the focus of Stoicism.

Moumita Das upvoted   •  Sep 29, 2024

Three persons A, B, and C together have to finish a task. It takes 75 minutes  for them to finish one-fourth of the task. A and C together take 75% of theMarks time taken by A and B together to finish the task. C takes 300 minutes lessthan B to finish the task. What is the time taken by A alone to finish the task?
  • a)
    10 hours
  • b)
    15 hours
  • c)
    20 hours
  • d)
    30 hours
Correct answer is option 'D'. Can you explain this answer?

Sagarika Rane answered
Since A, B and C take 75 minutes to finish one-fourth of a task, they take 300 minutes i.e. 5 hours, to complete the entire task.
Let the total work be some multiple of 5, say 25 units.
Let a, b and c be the amount of work done by A, B and C per hour.
a + b + c = 25/5 = 5 units/hour ... (i)
... more

Moumita Das asked   •  Apr 25, 2024

The number of positive integers less than 50, having exactly two distinct factors other than 1 and itself, is
Correct answer is '15'. Can you explain this answer?

Om Joshi answered
Counting Positive Integers
To find the number of positive integers less than 50 that have exactly two distinct factors other than 1 and itself, we need to look for numbers that are prime.

Prime Numbers
Prime numbers have exactly two factors - 1 and the number itself. So, we can eliminate prime numbers from our count as they do not meet the criteria.

<
... more

Directions: Read the following passage and answer the question.
Talking to people is a necessity when it comes to business. Most people are fine conversing normally, but when it comes to presenting to a group of investors, all sorts of knots may be tied up. Whether it be presenting a sales pitch to a group of decision makers or presenting your ideas to your team in a meeting, there are some ways to help you get over the presentation anxiety. Nothing can feel more daunting than having a bunch of eyes and ears watching and listening to your every stutter, fumble, and mistake. Part of the pressure and anxiety comes from you fearing what could happen if you failed. Preparation not only helps to make sure you give your presentation the best quality you can, but it also provides you with confidence knowing that your preparations will lead to a better presentation.
For preparations, one must know the topic. One won't need to scramble for notes or spend time thinking about the information in your presentation if you have a good grasp of what it entails. To further prepare for this, brainstorm all sorts of questions that might be asked and come up with answers to them. If you plan to have any digital aids in your presentation, know where they are and where you can use them. This is because technology is not always flawless. Perhaps create a physical slideshow or have multiple backups especially if your presentation is heavily reliant on visual information.
Lastly, practise. Practise in conditions similar to an actual presentation and do it until you feel comfortable. The truth is, many pay more attention to the information being relayed rather than the presenter. Yes, a good presenter will give a memorable presentation, but keep in mind that you are critiquing your presentation more harshly than anyone else. Slight stumbles might be noticed by only you alone while the audience is the most unaware. There are always going to be people in the audience that will be bored or tired. Instead of focusing on pleasing everyone, focus on giving a great presentation. No matter how important the presentation is, put your efforts and skills before the reaction of the audience. The less you think about how the audience is reacting, the less anxious you will be.
Remember, silence is not a jab at you personally. Maybe your point is not as well loved as you thought it would be or your joke was not as well received as you thought it would be. That does not mean your point was terrible or that your joke was unfunny. Not all audiences react in the same manner. Your presentation should flow at a breathable pace. A pause here and there gives the audience enough time to process what you said. In storytelling, pauses work the same way to capture the audience's attention. They create suspense and anticipation, drawing in people's attention, and they provide a brief resting period before moving on to the next talking point. Remember, your performance does not indicate your value as a person. We all have bad days and many people can overlook shortcomings. As said previously, silence is not all that bad. Your presentation does not have to be perfect. In fact, a bad presentation is just another way for you to learn how to improve your next presentation. Sometimes we get stuck on the image of who we used to be. Oftentimes, when we criticise our abilities, it is based off of an older version of us.
Q. Which of the following is NOT recommended by the author, in context of giving a presentation?
... more

Moumita Das answered  •  Apr 23, 2024
Explanation:

Option D is NOT recommended by the author:
- Making a joke may be avoided as they have a tendency to be misunderstood.
- The author emphasizes the importance of focusing on giving a great presentation rather than trying to please everyone.
- While humor can be effective in engaging an audience, it can also be risky as jokes may not always be wel
... more

Direction: Study the following information and answer the given question.
Seven friends, I, J, K, L, M, N, and O, are living in a seven-storied building with floor 1 being the lowermost floor, but not necessarily in the same order. All of them like seven different fruits, viz. Watermelon, Banana, Mango, Avocado, Guava, Pineapple and Kiwi, but not necessarily in the same order.
N, who likes Banana, lives on the 4th floor. Only three floors are there in between the floors on which O and I live. L, who likes Kiwi, lives on an even numbered floor above M, who likes Avocado. Neither O nor K lives on the lowermost floor. Neither K nor J likes Guava. The person, who lives on a floor immediately below M, lives on an odd numbered floor. The person, who likes Guava, lives on the topmost floor. Neither O nor K likes Mango. More than three people are living below the floor on which the person lives who likes Pineapple. I lives on a floor which is not adjacent to N.
Who among the following likes Watermelon?
  • a)
    I
  • b)
    K
  • c)
    O
  • d)
    M
  • e)
    J
Correct answer is option 'C'. Can you explain this answer?

Moumita Das answered  •  Apr 23, 2024
Analysis:
- N likes Banana and lives on the 4th floor.
- O and I are separated by three floors.
- L likes Kiwi and lives on an even-numbered floor above M, who likes Avocado.
- Neither O nor K lives on the lowermost floor.
- K and J do not like Guava.
- The person below M lives on an odd-numbered floor.
- The person who likes Guava lives on the topmost flo
... more

The tenth inter school dance competition has eight girls participating in it.
1. Each girl likes a different colour and presents a different dance form.
2. Preeti, who is a Kathak dancer, does not like lavender and red.
3. Sonia likes blue and presents Kuchipudi.
4. Neither of Shreya or Priya like magenta and yellow. They present Manipuri and Sattriya in some order.
5. Pooja and Tania present one of Folk Dance, Western or Odissi, while Tania and Vaishali have their favourite colours among violet, magenta or cream.
6. Priyanka presents Bharatnatyam and likes pink.
7. The girl who likes cream presents Manipuri.
8. Vaishali presents Odissi.
9. Pooja doesn’t like lavender.
10. The girl who likes violet presents Western dance.
Further following information is known about their performances
1. The show had 2 halves each of 4 performances. 
2. Kuchipudi and Bharatnatyam should be the 1st performances in two different halves of the show.
3. Shreya should dance before the girl liking Lavender.
4. Folk Dance, Western and Odissi should be in same order in 2nd half with Folk Dance being before both of them
 
Q.The girl who likes magenta presents
... more

Moumita Das answered  •  Apr 23, 2024
Explanation:
Explanation:

Given information:
1. Preeti, who is a Kathak dancer, does not like lavender and red.
2. Sonia likes blue and presents Kuchipudi.
3. Neither of Shreya or Priya like magenta and yellow. They present Manipuri and Sattriya in some order.
4. Pooja and Tania present one of Folk Dance, Western or Odissi, while Tania and Vaishal
... more

The tenth inter school dance competition has eight girls participating in it.
1. Each girl likes a different colour and presents a different dance form.
2. Preeti, who is a Kathak dancer, does not like lavender and red.
3. Sonia likes blue and presents Kuchipudi.
4. Neither of Shreya or Priya like magenta and yellow. They present Manipuri and Sattriya in some order.
5. Pooja and Tania present one of Folk Dance, Western or Odissi, while Tania and Vaishali have their favourite colours among violet, magenta or cream.
6. Priyanka presents Bharatnatyam and likes pink.
7. The girl who likes cream presents Manipuri.
8. Vaishali presents Odissi.
9. Pooja doesn’t like lavender.
10. The girl who likes violet presents Western dance.
Further following information is known about their performances
1. The show had 2 halves each of 4 performances. 
2. Kuchipudi and Bharatnatyam should be the 1st performances in two different halves of the show.
3. Shreya should dance before the girl liking Lavender.
4. Folk Dance, Western and Odissi should be in same order in 2nd half with Folk Dance being before both of them.
 
Q.If Priyanka dances in 2nd half, which of the following statement is/are true?
A. Pooja dances after Tania
B. Preeti dances before Shreya
C. Vaishali dances after Priya
... more

Moumita Das answered  •  Apr 23, 2024
Analysis:
- Priyanka dances in the 2nd half
- Kuchipudi and Bharatnatyam are the 1st performances in different halves
- Folk Dance, Western, and Odissi are in the same order in the 2nd half

Explanation:
- Since Priyanka dances in the 2nd half, the order of performances in the 2nd half is Folk Dance, Western, and Odissi.
- As per the given informati
... more

The tenth inter school dance competition has eight girls participating in it.
1. Each girl likes a different colour and presents a different dance form.
2. Preeti, who is a Kathak dancer, does not like lavender and red.
3. Sonia likes blue and presents Kuchipudi.
4. Neither of Shreya or Priya like magenta and yellow. They present Manipuri and Sattriya in some order.
5. Pooja and Tania present one of Folk Dance, Western or Odissi, while Tania and Vaishali have their favourite colours among violet, magenta or cream.
6. Priyanka presents Bharatnatyam and likes pink.
7. The girl who likes cream presents Manipuri.
8. Vaishali presents Odissi.
9. Pooja doesn’t like lavender.
10. The girl who likes violet presents Western dance.
Further following information is known about their performances
1. The show had 2 halves each of 4 performances. 
2. Kuchipudi and Bharatnatyam should be the 1st performances in two different halves of the show.
3. Shreya should dance before the girl liking Lavender.
4. Folk Dance, Western and Odissi should be in same order in 2nd half with Folk Dance being before both of them
 
Q.If Preeti dances 2nd in a particular half, who must dance immediately after Preeti?
... more

Moumita Das answered  •  Apr 23, 2024
Analysis:

Given Information:
- Preeti is a Kathak dancer who does not like lavender and red.
- Sonia likes blue and presents Kuchipudi.
- Shreya and Priya do not like magenta and yellow and perform Manipuri and Sattriya.
- Pooja and Tania perform Folk Dance, Western, or Odissi, with Tania liking violet, magenta, or cream.
- Priyanka likes pink and
... more

Answer the following question based on the information given below.
The tenth inter school dance competition has eight girls participating in it.
1. Each girl likes a different colour and presents a different dance form.
2. Preeti, who is a Kathak dancer, does not like lavender and red.
3. Sonia likes blue and presents Kuchipudi.
4. Neither of Shreya or Priya like magenta and yellow. They present Manipuri and Sattriya in some order.
5. Pooja and Tania present one of Folk Dance, Western or Odissi, while Tania and Vaishali have their favourite colours among violet, magenta or cream.
6. Priyanka presents Bharatnatyam and likes pink.
7. The girl who likes cream presents Manipuri.
8. Vaishali presents Odissi.
9. Pooja doesn’t like lavender.
10. The girl who likes violet presents Western dance.
Further following information is known about their performances
1. The show had 2 halves each of 4 performances. 
2. Kuchipudi and Bharatnatyam should be the 1st performances in two different halves of the show.
3. Shreya should dance before the girl liking Lavender.
4. Folk Dance, Western and Odissi should be in same order in 2nd half with Folk Dance being before both of them.
 
Q.Who likes red?
... more

Moumita Das answered  •  Apr 23, 2024
Analysis:

Given Information:
- Preeti is a Kathak dancer and does not like lavender and red.
- Sonia likes blue and presents Kuchipudi.
- Shreya and Priya do not like magenta and yellow, and they present Manipuri and Sattriya.
- Pooja and Tania present either Folk Dance, Western, or Odissi.
- Tania and Vaishali like violet, magenta, or cream.
... more

The passage given below is followed by a set of questions. Choose the most appropriate answer to each question.
Dogs are able to follow human pointing gestures to find hidden food, and they can indicate successfully to their owners by their own pointing actions where a hidden toy is located. Under certain circumstances, dogs understand that a human who cannot see them (because, for example, she is blindfolded) is less likely to respond to begging with a tasty treat than a person whose vision is not obscured.
Dogs are also more likely to obey a command to leave something desirable alone if their master stays in the room than if he steps out. And yet attempts to view canine smarts as cut from the same cloth as human intelligence gloss over a lot of the details about how dogs and humans operate. We have found that people remain somewhat mysterious to dogs for the first five months of life, and dogs at our local pound lag considerably behind house dogs when it comes to understanding human beings.
Recent research by Alexandra Horowitz at Barnard College in New York accentuates the “talking past each other” that sometimes goes on between humans and dogs. Horowitz asked owners to forbid their dogs to take a biscuit and then briefly leave the room. When the owners returned, some were told that their dogs had been naughty and eaten the forbidden food.
Others were told their dog had been good and left the biscuit alone. If the dog had misbehaved, the owner was given a moment to berate his pet for its misdeed. The owners were then asked whether their dog looked guilty. The twist in the tale was that only half of the owners were correctly informed.
When Horowitz asked each owner whether his dog looked guilty, she could consider whether the owner’s report of “guilty looks” actually had to do with the facts of the matter - whether the dog had taken the forbidden treat - or whether it reflected nothing more than whether the owner had chastised his hound. The results showed clearly that “guilty looks” came about because the dog was being scolded. This does not mean that we should not chastise our dogs (or praise them). All it means is that, if we want to live harmoniously with another species in our most intimate places, we must recognize that some of the time our preferred modes of reasoning are not theirs. We must try to understand dogs on their own terms, and help them to understand us
Q.
The question below consists of a set of labelled sentences.
These sentences, when properly sequenced, form a coherent paragraph. Choose the most logical order of sentences from the options.
1. In the course of his life an average American watches three years of advertising on television.
2. Every day an estimated twelve billion display advertisements, 3 million radio commercials and more than 200,000 television commercials are dumped into North America’s “collective unconscious”.
3. Kalle Lasn, one of the most outspoken critics of advertising on the international stage considers advertising “the most prevalent and toxic of the mental pollutants.
4. Opponents equate the growing amount of advertising with a “tidal wave” and restrictions with “damming” the flood.
5. From the moment your radio alarm sounds in the morning to the wee hours of late-night, TV microjolts of commercial pollution flood into your brain at the rate of around 3,000 marketing messages per day.
... more

Moumita Das answered  •  Apr 23, 2024
Correct answer: option B

Explanation:

1. Sentence 4: Opponents equate the growing amount of advertising with a tidal wave and restrictions with damming the flood.

2. Sentence 3: Kalle Lasn, one of the most outspoken critics of advertising on the international stage considers advertising the most prevalent and toxic of the mental pollutan
... more

In a trapezium, it was found that the sum of the squares of the diagonals is less than the sum of the squares of the sides by 196. If the shorter of the parallel sides is 8cm, what is the length of the longer of the parallel sides?
  • a)
    21
  • b)
    22
  • c)
    23
  • d)
    24
Correct answer is option 'B'. Can you explain this answer?

Moumita Das answered  •  Dec 27, 2023
Given:
- The sum of the squares of the diagonals is less than the sum of the squares of the sides by 196.
- The shorter of the parallel sides is 8cm.

To find:
- The length of the longer of the parallel sides.

Assumption:
- Let the longer parallel side be 'x' cm.

Solution:
Let's assume the trapezium ABCD, where AB
... more

From SINGHAD college  in Ranchi , 8 males and 7 females have appeared for  Science Committee selection process, 3 males and 4 females are to be selected. The total number of ways in which the Committee can he formed, given that Mr. Rahul is not to be included in the Committee if Ms. Rashmi is selected, is:
  • a)
    1960     
  • b)
    2840    
  • c)
    1540    
  • d)
    None of the Above
Correct answer is option 'C'. Can you explain this answer?

Moumita Das answered  •  Dec 27, 2023
To find the total number of ways in which the Science Committee can be formed, we need to consider the following conditions:
1. Mr. Rahul should not be included in the committee if Ms. Rashmi is selected.
2. 3 males and 4 females need to be selected.

Let's calculate the number of ways to select the committee by considering these conditions step by step:

Step 1: Calc
... more
Moumita Das asked   •  Jul 20, 2023

What is the personal interview round in the CAT selection process?

Raksha Patel answered
The Personal Interview Round in the CAT Selection Process

The personal interview round is an important component of the Common Admission Test (CAT) selection process. It is conducted by the top B-schools in India as a means to assess the candidates' personality, communication skills, leadership potential, and overall suitability for the MBA program. The personal interview round a
... more

Moumita Das asked   •  Apr 09, 2023

Find the simple interest on Rs. 2000 at 6% per annum for a period of 1 year and 7 months.
  • a)
    Rs. 200
  • b)
    Rs. 190
  • c)
    Rs. 180
  • d)
    None of these
Correct answer is option 'B'. Can you explain this answer?

Prerna Gupta answered
Given:
Principal amount (P) = Rs. 2000
Rate of interest (R) = 6% per annum

To find:
Simple interest for a period of 1 year and 7 months

Solution:
To calculate simple interest, we use the formula:
Simple Interest (SI) = (P * R * T) / 100

Step 1: Convert the given time period into years.
1 year and 7 months ca
... more

Moumita Das asked   •  Jan 24, 2020

Read the following passage and answer the questions.
In the event that we find proof that aliens exist, Stephen Hawking says we should not attempt to contact them. ‘We only have to look at ourselves to see how intelligent life might develop into something we wouldn’t want to meet. I imagine the aliens might exist in massive ships, having used up all the resources from their home planet. Such advanced aliens would perhaps become
nomads, looking to conquer and colonize whatever planets they can reach.’ Given the history of encounters between earthly civilizations in which the more advanced enslave or destroy the less developed, Hawking concluded: ‘If aliens ever visit us, I think the outcome would be much as when Europeans first landed in America, which didn’t turn out very well for the Native Americans.’
Q.
Which of the following, if true, would strengthen Hawking’s argument the most?
... more

Anu Singh answered
Option 1 actually weakens the argument slightly rather than strengthening it, as it claims that the aliens would not bother us at all.
Option 3 doesn’t make much sense in the context of the paragraph: if the aliens didn’t become nomads, exactly how would they be harmful to humans?
The issue in the paragraph is whether we should contact aliens, not whether we could. So option 4 is beside the point.
Option 5 neither strengthens nor weakens the argument.
Only option 2 strengthens the argument: it is further proof that space-faring civilizations (in this case, us) are likely to conquer other civilizations, and it extrapolates from human behaviour, which is in keeping with the arguments that Hawking uses.
Hence, the correct answer is option 2.

Moumita Das asked   •  Jan 17, 2020

Answer the following question based on the information given below.Animals can habituate to environmental disturbances. What’s more, they can get very good at telling the difference between stimuli that are relevant to them, and those that aren’t. Tree frogs can tell the difference between vibration caused by a predator and vibration caused by rain, even though these cues are extremely similar. Similarly, caterpillars living on leaves can tell the difference between vibrations caused by other caterpillars, predators, wind and rain.Spiders build webs on human-built structures such as pipelines, fences, road signs and wire rods, all of which are made out of materials not present in their evolutionary history. This means that they will absorb vibrations from the environment differently to a more natural place a spider might build its web, for example a plant. If these human-built objects are anywhere near humans (which they are likely to be) they are also probably affected by human noise. For example, a spider that has built a web near a road will be subject to the vibration caused by cars driving by. This matters particularly to spiders because they use vibration so much in guiding their behaviour. Indeed, you can even imagine the web to be an extension of the spider itself, such that the vibrations on the very outside of the web travel down to the spider situated in the centre and tell it whether it’s being ‘touched’ by prey, a mate, wind or rain.
Q.
 Select the odd man out from the given alternatives.
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Milan Kapoor answered
All these are idioms with the correct meanings or correct associations - For example, a prince is a king in the waiting. In option 5 the idiom and meaning are unrelated. But, when you “hang on by your fingernails”, you are ‘only just managing to avoid danger or failure’. “Nit-picking” means ‘minute and usually unjustified criticism’.Hence, the correct  answer is option 5.

Moumita Das asked   •  Jan 09, 2020

Group Question
A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.
Plutarch, a Theban by birth, once composed a "great collection of slanders" against Herodotus, titled On the Malignity of Herodotus, including the allegation that the historian was prejudiced against Thebes because the authorities there had denied him permission to set up a school. Dio Chrysostom similarly attributed prejudice against Corinth to the historian's bitterness over financial disappointments, an account supported by Marcellinus in his Life of Thucydides. In fact Herodotus was in the habit of seeking out information from empowered sources within communities, such as aristocrats and priests, and this also occurred at an international level, with Periclean Athens becoming his principal source of information about events in Greece. As a result, his reports about Greek events are often coloured by Athenian bias against rival states - Thebes and Corinth in particular. Thus the accounts given by Plutarch and Chrysostom may be regarded as 'pay-back'. Herodotus wrote his Histories in the Ionian dialect yet he was born in Halicarnassus, originally a Dorian settlement. According to the Suda (an 11th-century encyclopaedia of Byzantium which likely took its information from traditional accounts), Herodotus learned the Ionian dialect as a boy living on the island of Samos, whither he had fled with his family from the oppressions of Lygdamis, tyrant of Halicarnassus and grandson of Artemisia I of Caria. The Suda also informs us that Herodotus later returned home to lead the revolt that eventually overthrew the tyrant. However, thanks to recent discoveries of some inscriptions on Halicarnassus, dated to about that time, we now know that the Ionic dialect was used there even in official documents, so there was no need to assume like the Suda that he must have learned the dialect elsewhere. Moreover, the fact that the Suda is the only source we have for the heroic role played by Herodotus, as liberator of his birthplace, is itself a good reason to doubt such a romantic account.
It was conventional in Herodotus’ day for authors to 'publish' their works by reciting them at popular festivals. According to Lucian, Herodotus took his finished work straight from Asia Minor to the Olympic Games and read the entire Histories to the assembled spectators in one sitting, receiving rapturous applause at the end of it.. According to a very different account by an ancient grammarian, Herodotus refused to begin reading his work at the festival of Olympia until some clouds offered him a bit of shade, by which time however the assembly had dispersed - thus the proverbial expression "Herodotus and his shade". Herodotus’ recitation at Olympia was a favourite theme among ancient writers and there is another interesting variation on the story to be found in the Suda, Photius and Tzetzes, in which a young Thucydides happened to be in the assembly with his father and burst into tears during the recital, whereupon Herodotus observed prophetically to the boy's father: "Thy son's soul yearns for knowledge".
 
Q. In the passage, ‘pay-back’ refers to
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The last few lines of the 1st paragraph explain about the sources of information gathered by Herodotus. As this information was ‘biased against rival states-Thebes and Corinth’. Plutarch and Chrysostom had a vicious feeling against Herodotus and therefore the accounts given by them are full of criticism and termed as a ‘pay-back’ to all of Herodotus’ unfavourable reports about Greek events.
Hence, correct answer is option 3.

Moumita Das asked   •  Jan 01, 2020

Read the passage below and answer the questions that follow.
For nearly four centuries, the Atlantic slave trade brought millions of people into bondage. Scholars estimate that around 1.5 million people perished in the brutal middle passage across the Atlantic.
The slave trade linked Africa, Europe and the Americas in a horrific enterprise of death and torture and profit. Yet, in the middle of the 18th century, as the slave trade boomed like never before, some notable European observers saw it as a model of free enterprise and indeed of ‘liberty’ itself. They were not slave traders or slave- ship captains but economic thinkers, and very influential ones. They were a pioneering group of economic thinkers committed to the principle of laissez-faire: a term they themselves coined. United around the French official Vincent de Gournay (1712-1759), they were among the first European intellectuals to argue for limitations on government intervention in the economy. They organised campaigns for the deregulation of domestic and international trade, and they made the slave trade a key piece of evidence in their arguments.
For a generation, the relationship between slavery and capitalism has preoccupied historians. The publication of several major pieces of scholarship on the matter has won attention from the media. Scholars demonstrate that the Industrial Revolution, centred on the mass production of cotton textiles in the factories of England and New England, depended on raw cotton grown by slaves on plantations in the American South. Capitalists often touted the superiority of the industrial economies and their supposedly ‘free labour’. ‘Free labour’ means the system in which workers are not enslaved but free to contract with any manufacturer they chose, free to sell their labour. It means that there is a labour market, not a slave market.
But because ‘free labour’ was working with and dependent on raw materials produced by slaves, the simple distinction between an industrial economy of free labour on the one hand and a slave- based plantation system on the other falls apart. So too does the 1
 oundary between the southern ‘slave states’ and northern ‘free states’ in Ame rica. While the South grew rich from plantation agriculture that depended on slave labour, New England also grew rich off the slave trade, investing in the shipping and maritime insurance that made the transport of slaves from Africa to the United States possible and profitable. The sale of enslaved Africans brought together agriculture and industry, north and south, forming a global commercial network from which the modern world emerged.
It is only in the past few decades that scholars have come to grips with how slavery and capitalism intertwined. But for the 18th-century French thinkers who laid the foundations of laissez-faire capitalism, it made perfect sense to associate the slave trade with free enterprise. Their writings, which inspired the Scottish philosopher Adam Smith’s Wealth of Nations (1776), aimed to convince the French monarchy to deregulate key businesses such as the sale of grain and trade with Asia. Only a few specialists read them today.
Yet these pamphlets, letters and manuscripts clearly proclaim a powerful message: the birth of modern capitalism depended not only on the labour of enslaved people and the profits of the slave trade, but also on the example of slavery as a deregulated global enterprise.
Q.
Which of the following could be a possible definition of 3 Marks “|ajssez_fajre” with respect to the above passage?
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Om Joshi answered
A possible definition of the term “laissez-faire” can be inferred from the sentence, “...they were among the first European intellectuals to argue for limitations on government intervention in the economy” hence, option 1 is validated.
Option 2 is pointing at a different term altogether which might have some relation to the the term “laissez-faire”. So, eliminate option 2.
Option 3 is incorrect as the passage mentions presence of government authority. So, eliminate option 3.
Option 4 is very narrow and specific to slave trade. So, eliminate option 4.
Hence, the correct answer is option 1.

Moumita Das asked   •  Dec 26, 2019

In the figure below, ΔPQR is an equilateral triangle of side 7 cm and radius of the circle is 3.5 cm. What is the ratio of area of the circle to that of the shaded region?
  • a)
  • b)
  • c)
  • d)
  • e)
Correct answer is option 'A'. Can you explain this answer?

Abhay Rane answered
Length of the diameter of the circle = 2 x 3.5 = 7 cm
Since the chord of maximum length is the diameter, QR passes through the centre of the circle.
Let O be the centre of the circle and the triangle intersects the circle at the points S and T.
Draw OS and OT.
In ΔQOS,
OQ = OS and m∠OQS = 60°
∴  ΔQOS is an equilateral triangle and OQ = 3.5 cm
Similarly, we can prove that ΔSOT and ΔTOR are equilateral triangles and since OQ = OS = OT = OR = 3.5 cm, ΔQOS, ASOT and ATOR are congruent.
A(n QRTS) = 3 x A(ΔOQS)
Area of shaded region = Area of semicircle - A(ΔQRTS)
Area of the circle 
Hence, option 1

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