SSC CGL Tier I Mock Test - 12 - SSC CGL MCQ

Hence, the correct answer is ‘Intestine’.

The logic followed is:

All the others are correctly matched except Bharatanatyam which is the classical dance of Tamil Nadu, not Andhra Pradesh. 

Hence, the correct answer is "Bharatanatyam : Andhra Pradesh".

Q $ R @ S * T $ Z → Q is daughter of R, R is father of S, S is brother of T, T is daughter of Z

By using the symbols in the table given below, we can draw the following family tree:

Clearly, Z is mother of Q.

Hence, ‘Mother’ is the correct answer.

1. +, -, +, ÷, =

76 + 34 - 23 + 12 ÷ 6 = 21 

⇒ 76 + 34 - 23 + 2 = 21

⇒ 112 - 23 = 21

⇒ 89 ≠ 21 

2. -, -, +, +, =        

76 - 34 - 23 + 12 + 6 = 21 

⇒ 94 - 34 - 23 = 21 

⇒ 94 - 57 = 21 

⇒ 37 ≠ 21 

3. ×, -, +, ÷, =

76 × 34 - 23 + 12 ÷ 6 = 21 

⇒ 2584 - 23 + 2 = 21

⇒ 2586 - 23 = 21

⇒ 2563 ≠ 21

4. -, -, +, ÷, = 

76 - 34 - 23 + 12 ÷ 6 = 21

⇒ 76 - 34 - 23 + 2 = 21

⇒ 78 - 34 - 23 = 21

⇒ 78 - 57 = 21

⇒ 21 = 21

Hence, '-, -, +, ÷, =' is the correct answer.

Given Statements:

All girls are smart.

All smart are intelligent.

The least possible Venn diagram for the given statement is:

Conclusions:

I. All girls are intelligent - True (Because, All girls are smart and All smart are intelligent, so All girls are definitely intelligent).

II. Some girls are not intelligent - False (Because, All part of girls comes under intelligent, so all girls are intellingent).

So, Only conclusion I follows.

Hence, the correct answer is "Option 1".

Given Statements:

All paper are chair.

Same chair are ground.

All cat are ground.

The least possible Venn diagram for the given statement is:

Conclusions:

I. Some cat are chair - False (Because, No definite relation given between cat and chair, so it can be possible only).

II. Some chair are not paper - False (Because, All paper are chair gives some chair are paper, So, some chair are not paper will be true in possibility only).

So, Neither conclusion I nor II follows .

Hence, the correct answer is "Option 4".

The pattern followed here is,

Second number = First number × 2

Third Number = (First number)²

(1) → (23, 46, 529)  

46 = 23 × 2

529 = (23)²

(2) → (13, 26, 169) 

26 = 13 × 2

169 = (13)²

(3) → (27, 54, 719)  

54 = 27 × 2

719 ≠ (27)² 

(4) → (16,32, 256) 

32 = 16 × 2

256 = (16)²

As we can see, (27, 54, 719)  does not follow the pattern.

Hence, (27, 54, 719)  is odd number triad.

The correct answer is Supply-side inflation.

Key Points

• Supply-side inflation
  • The rise in the prices which is caused due to reduction in the supply of goods and services in the economy is called the supply-side of inflation which is also known as Cost-Push Inflation. Hence, Option 4 is correct.
  • As the name suggests, when the cost of production of a good or service increases, it becomes expensive for the producers to produce goods and services and as a result, they transfer this burden of rising in the cost of production to the customers by increasing the prices of goods and services. Thus, causing inflation.

Additional Information

• Demand-pull inflation
  • It is inflation that occurs when total demand for goods and services exceeds the economy’s capacity to produce those goods.
  • Demand-pull inflation occurs when an increase in the supply of money and credit stimulates overall demand for goods and services in an economy to increase more rapidly than the economy's production capacity. 
  • This increases demand and leads to price rises.
• A recessionary gap
  • It is a macroeconomic term that is used to describe when a nation’s real Gross Domestic Product (GDP) is lower than GDP in full employment.
  • Essentially, a recessionary gap refers to the difference between actual and potential production in an economy, with the actual being lower than the potential, which puts downward pressure on prices in the long run.
  • Often, these gaps are evident during an economic downturn and are associated with higher unemployment numbers.
• An inflationary gap
  • It is a macroeconomic concept that measures the difference between the current level of real gross domestic product (GDP) and the GDP that would exist if an economy was operating at full employment.

The correct answer is Nichrome.

Key Points

• For an electric iron heater element should have higher resistance, high melting point, and high specific heat, using this information find the element mentioned in the option which will be suitable for an electric iron.
• copper, tungsten, nichrome, iron, platinum We know that the function of an electric iron is to remove wrinkles using pressure and heat.
• Since for using this machine for the long term, a heating element should not be melted.
• We know that there are two conditions under which an element gets melted.
• An element should have high resistance so that it can hold its configuration in a high voltage current.
• It should have a high melting point such that it can sustain high temperatures.
• So, from all the given Nichrome is used as a heating element in electric iron which is an alloy consisting 80% of Nickel and 20% of Chromium melting point of this element is 1400 degrees Celsius with high resistance which makes this element best for use as a heating element. Hence, Option 4 is correct.
• The reason which makes the Nichrome best for heating elements is when it is heated in the air it develops an outer layer of chromium oxide which makes it stable in air and this chromium layer helps the element from oxidizing further during heating. 

Additional Information

• Copper is a chemical element with the symbol Cu and atomic number 29.
• It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange colour.
• Silver is a chemical element with the symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal.
• Lead is a chemical element with the symbol Pb and atomic number 82.
• It is a heavy metal that is denser than most common materials.
• Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is silvery with a hint of blue it tarnishes to a dull grey color when exposed to air.

The correct answer is 1958.

Key Points

• DRDO is a military research and development wing of the Ministry of Defence, headquarters in New Delhi, India.
• It was founded in 1958.
• It has the vision to empower India with cutting-edge defence technologies and a mission to achieve self-reliance in critical defence technologies and systems.
• DRDO has developed an antibody detection-based kit called DIPCOVAN.
• Current Chief: Samir V Kamat

Important Points

Given: 

Days taken by Asha to complete the work = 6 days

Days taken by Bhuvan to complete the work = 9 days

Concept Used:

Assuming the work as LCM of 6 & 9

Calculation:

⇒ Let the work be 18 units.

⇒ Work done by Asha in one day = 18 ÷ 6 = 3 units / day

⇒ Work done by Bhuvan in one day = 18 ÷ 9 = 2 units / day

⇒ When they work together alternatively,

⇒ Work done in 2 days = 2 + 3 = 5 units

⇒ Work done in another 2 days = 5 units

⇒ Work done in another 2 days = 5 units

⇒ In this way they will complete 15 units in 6 days.

⇒ Then, Asha's turn will come and she will do remaining 3 units on 7^th day

 Hence, the work will be completed in 7 days.
Shortcut Trick

Work done in 2 days = 2 + 3 = 5 units 
⇒  6 days. =15 unit 
Then, Asha's turn will come and she will do the remaining 3 units on 7th day

Given:

The perpendicular drawn from point A (4, 1) divides the join of B (2, -1) and C (6, 5).

Concept used:

1. Straight Line equation using two points = 

2. If two straight lines are perpendicular, then their slopes are opposite reciprocals of one another, or the product of their slopes is −1.

3. If point R internally divides the line segment joining (x1, y1) and (x2, y2) in m : n ratio, then the coordinate of R is given by .

4. y = Mx + C (where M is the slope)

Calculation:

Equation of BC

⇒ 3x - 2y = 8      ....(1)

The slope of (1) = 3/2

The slope of the straight line that is perpendicular to (1) = (-1) div (3/2) = -2/3

Hence, the equation of the straight line that is perpendicular to (1)

⇒ y = (-2/3)x + K (K is a constant)      ....(2)

A (4, 1) is on (2). So, it must satisfy (2).

Hence,

1 = (-2/3) × 4 + K

⇒ K = 11/3

So, equation (2) becomes

⇒ y = (-2/3)x + 11/3 (Putting the value of K)

⇒ 2x + 3y = 11      ....(3)

By solving (1) and (3) we get,

x = 46/13 and y = 17/13

So, the intersecting point of (1) and (3) is H(46/13, 17/13). (Letting the (46/13, 17/13) to be H)

Hence, the foot of the perpendicular of A(4, 1) is (46/13, 17/13).

Let the point H divides BC in m : n ratio.

According to the concept,

⇒ m/n = 5/8

∴ The perpendicular drawn from point A (4, 1) divides the join of B (2, -1) and C (6, 5) in 5 : 8.

Solution:

Cost price of the bottle = 4500 Rs.

Marked price of the bottle = 4500 × [(100 + x)/100] Rs.

It is sold after two successive discount of Rs. 140 and 10% respectively for a profit of Rs. 720.

Thus, 

SP = CP + Profit = MP - (Successive Discount of 140 & 10%)

{[4500 × [(100 + x)/100] - 140} × 90% = 4500 + 720

{[4500 × [(100 + x)/100] - 140} × 0.9 = 5220

[4500 × [(100 + x)/100] - 140  = 5800

⇒ 100 + x = 132

⇒ x = 32%

Cost price of the jeans = 80% × 4500 = 3600 Rs.

The selling price of the jeans = 4680 Rs.

Profit% = [(4680 - 3600)/3600] × 100 = 30%

ATQ, x - k = 30

⇒ k = 32 - 30

⇒ k = 2

Given:

Tap P can fill a tank = 20 hours

Tap Q can fill a tank = 25 hours

Tap R can fill a tank = 40 hours

Calculation:

Let the total work be LCM of 20, 25, and 40 = 200 units

⇒ Efficiency of tap P = 200/20 = 10 units

⇒ Efficiency of tap Q = 200/25 = 8 units

⇒ Efficiency of tap R = 200/40 = 5 units

Since the tap Q is kept open for 10 hours,

Work done by tap Q = 10 × 8 = 80 units

∵ Tap R is closed 9 hours before the tank overflows

⇒ Tap P alone worked for 9 hours.

⇒ Work done by tap P alone = 9 × 10 = 90 units

Remaining work = 200 - (80 + 90) = 30 units

The remaining work was done by tap P and tap R together

Time taken by tap P and Tap R to complete the remaining work = 30/(10 + 5) = 30/15 = 2 hours

∴ The total time to fill the tank is (10 + 9 + 2) 21 hours.

Given:

Principal = Rs. 8000

Rate = 10%

Time =   years

Formula used:

SI = (P × t × r)/100

CI = P(1 + r/100)^t - P

P = Principal

t = time

r = rate

Calculation:

SI = (8000 × 12 × 10)/(100 × 5)

⇒ Rs. 1920

CI = 8000[1 + 10/100]² × [1 + 4/100] - 8000

⇒ 8000 × 11/10 × 11/10 × 26/25 - 8000

⇒ 10067.2 - 8000

⇒ 2067.2

Difference = 2067.2 - 1920 = 147.2

∴ Required difference is Rs. 147.2

Shortcut Trick
 

So, the difference of CI and SI = 80 + 32 + 32 + 3.2

∴ The Difference of CI and SI = 147.2.

Given: 

B(1995 + 1998) = 1620 + 1600

A(1996 + 1997) = 1590 + 1750

Solution:

The total number of coolers sold by shopkeeper B in 1995 and 1998 = 1620 + 1600 = 3220

The total number of coolers sold by shopkeeper A in 1996 and 1997 = 1590 + 1750 = 3340

difference = 3220 - 3340 = -120

⇒ less

Required percentage = 120/3340 x 100 = 3.5% ~ 4% less

Hence, the correct option is 2.

Given  

The boat covers a distance from A to B downstream and from B to A upstream in 4 hours  

The speed of the stream = 2 km/hr

The speed of the boat in still water = 4 km/hr,

Concept Used:

Upstream speed = Speed of boat - Speed of the stream

Downstream speed = Speed of boat + Speed of the stream

Calculation :

Speed of boat downstream = (4 + 2) km/hr = 6 km/hr

speed of boat upstream = (4 - 2) km/hr = 2 km/hr

Let, the distance between point A and point B be x km 

Accordingly,   

x/6 + x/2 = 4

⇒ (x + 3x)/6 = 4  (cross multiple)

⇒ 4x = 24 

⇒ x = 24/ 4 

⇒ x = 6

∴  The distance between A and B is 6 km

Calculation:

Total number of boys and girls in class A = (27 + 31) = 58

Number of students promoted in class A = 43

Number of failed students in class A = [(58 – 43)/58 × 100] 

⇒ (15/58 × 100)

⇒ (1500/58)

⇒ 25.86%

Now,

Total number of boys and girls in class B = (35 + 30) = 65

Number of students promoted in class B = 45

Number of failed students in class B = [(65 – 45)/65 × 100] 

⇒ (20/65 × 100)

⇒ (2000/65)

⇒ 30.77%

Now,

Total number of boys and girls in class C = (30 + 32) = 62

Number of students promoted in class C = 58

Number of failed students in class C = [(62 – 58)/62 × 100] 

⇒ (4/62 × 100)

⇒ (400/62)

⇒ 6.45%

Now,

Total number of boys and girls in class D = (33 + 34) = 67

Number of students promoted in class D = 61

Number of failed students in class D = [(67 – 61)/67 × 100]

⇒ (6/67 × 100)

⇒ (600/67)

⇒ 8.96%

∴ The highest percentage of failed students in class B 

Given:

Simple interest after 2 years = 2400

Compound interest after 2 years = 2544

Concept:

The value of simple interest is always the same for each year if the principal and rate of interest is constant.

Formula used:

Simple interest = PrT/100

Where P = principal

r = rate of interest per annum

T = time

Calculation:

Let the principal be P and the rate of interest be r.

First year simple interest = 2400/2 = 1200

Compound interest for 2 years = Simple interest for 2 years + r% of simple interest of first year interest

⇒ 2544 = 2400 + r% of 1200

⇒ 12r = 144

⇒ r = 12

Now,

2400 = (P × 12 × 2)/100

∴ Principal (P) is Rs. 10000

Given:

cosecθ =  

Calculation:

According to the question,

⇒ cosecθ = 

Take the square on both sides of the equation.

⇒ cosec²θ = 

It can be written as:

⇒ cosec2θ = 2cosecθ

⇒ cosecθ = 2

Since cosec(30^∘) = 2,

Therefore, θ = 30^∘

Again according to the question,

⇒ ? = sin2θ + sinθ + 1/2

⇒ ? = sin2(30∘) + sin(30∘) + 1/2

⇒ ? = 1/4 + 1/2 + 1/2

⇒ ? = 1.25

Therefore, '1.25' is the required answer.

Given:

R wants to deposit ₹80,000 in the bank for a year. In his account, the bank gives 12% simple annual interest but charges ₹3,000 as a processing fee for the account.

Formula used:

Simple interest = P × R × T / 100 [ P = principal, R = rate of interest, T = time]

Calculation:

Simple interest is  80000 × 12 × 1/100 = Rs 9600

After charging the processing fee the profit amount

9600 - 3000 = 6600

As per the question, 

 The percentage of earning in this account is (6600 / 80000) × 100 = 8.25%

∴ The correct option is 4

The correct answer is: The teacher said, “Why didn’t you do your homework?”

Key Points

• Here's how we convert this from indirect to direct speech:
  • We replace the reporting verb 'asked' with 'said'.
  • We will put a comma and inverted commas before 'why'. 
  • The tense of reported speech is changed from the past perfect (hadn't done) to the past simple (didn't do).
  • The personal pronouns are then adjusted. 'Me' becomes 'you' and 'I' becomes 'you'.

Therefore, the correct answer is "Option 2".

Here the correct answer is Convalescent.

Key Points

• Let's look at the meaning of the correct answer:-
• Convalescent means someone who is recovering from an illness. (कोई जो किसी बीमारी से ठीक हो रहा है)
  • For Example - Most convalescents prefer to be cared for at home rather than in a hospital.
• Thus, the correct answer is Option 2.

Additional Information

• Let's look at the meaning of the other words given in options:-
  • Invalid: someone who is sick and unable to take care of himself or herself, especially for a long time. (कोई जो बीमार है और खुद की देखभाल करने में असमर्थ है, खासकर लंबे समय से)
  • Senator: a politician who has been elected to a Senate. (एक राजनेता जो एक सीनेट के लिए चुना गया है)
    • Senate - one of the two groups of politicians who make laws in some political systems such as in the US, Australia, and France, often having different powers from the other group and different rules for members, for example being elected for a longer period. (राजनेताओं के दो समूहों में से एक, जो अमेरिका, ऑस्ट्रेलिया और फ्रांस जैसे कुछ राजनीतिक प्रणालियों में कानून बनाते हैं, अक्सर दूसरे समूह से अलग-अलग शक्तियां होती हैं और सदस्यों के लिए अलग-अलग नियम होते हैं, उदाहरण के लिए लंबी अवधि के लिए चुने जाने के लिए)
  • Cartographer: a person who draws or produces maps. (वह व्यक्ति जो नक्शा बनाता है)

The correct answer is 'Indifference'.
Key Points

• Antonyms are words with opposite meanings.
• Fixation means a strong attachment or obsession with something. (किसी चीज़ के प्रति गहरा लगाव या जुनून)
  • Example: Her fixation on collecting vintage stamps led her to search for rare pieces at every opportunity.
• Marked option Indifference means lack of interest or concern. (रुचि या चिंता की कमी)
  • Example: Despite the exciting news, his indifference to the project was evident as he barely reacted to the announcement.
• Therefore, indifference is the most appropriate antonym for fixation.

Hence, option 2 is the correct answer.

Additional Information

• Formulation means the process of creating or developing something. (किसी चीज़ को बनाने या विकसित करने की प्रक्रिया)
• Inclination means a tendency or preference towards something. (किसी चीज़ के प्रति प्रवृत्ति या प्राथमिकता)
• Reformation means the act of improving or changing something for the better. (किसी चीज़ को बेहतरी के लिए सुधारने या बदलने की क्रिया)

The correct answer is "SQPR."

Key Points

• The sentence talks about the definition of a 'Resource' and how it is determined.
• The sentence starts with the subject 'Everything available in our environment'.
• So, the first part must be S.
• It should be followed by Q as it is having the relative clause "which can be used to satisfy our needs."
• Now, Q must be followed by P as P is adding more information to Q.
• The last part is R as it is providing an object to the sentence.
• The correct answer is Option 2.

Correct sentence: Everything available in our environment which can be used to satisfy our needs, provided it is technologically accessible, economically feasible and culturally acceptable can be termed as 'Resource.'

The correct answer is Option (4) i.e. 'far-reaching'.Key Points

• The sentence mentions "consequences of climate change", implying that the adjective used should express the widespread or extensive nature of these effects.
• 'Short-sighted', 'clean', and 'inadequate' do not accurately represent the comprehensive impact of climate change.
• 'Far-reaching' accurately describes the extensive and widespread effects of climate change.

Therefore, the correct answer is 'far-reaching'.

The Passage is Climate change is a pressing global issue that demands immediate (1) action. The Earth’s climate is undergoing (2) profound changes primarily due to human activities, such as burning fossil fuels and deforestation. The consequences of climate change are (3) far-reaching and include rising global temperatures, extreme weather events, and biodiversity loss. To mitigate these effects, it is crucial to reduce greenhouse gas emissions, promote renewable energy sources, and adopt sustainable (4) ________. Additionally, raising awareness and educating the public about the importance of conservation and environmentally friendly practices are essential. Cooperation and international (5) ________ are needed to address climate change collectively.

Additional Information

• Far-reaching (दूर तक पहुंचने वाला) - Having a wide range or scope; significant and extensive.
  • Example: The new law will have far-reaching consequences for the entire population.

The correct answer is "Denied."
Key Points

• "Confessed" means to admit that you have done something bad or wrong. (अपराध या दोष स्‍वीकार करना)
  • Example: The young woman confessed to stealing the money.
• The antonym of 'confessed' is 'denied.'
• "Denied" means to declare untrue or to refuse to acknowledge. (किसी बात से इनकार करना; किसी बात को नकारना)
  • Example: She denied my entry.
• In the given sentence, the cops used physical torture to make the suspects confess, so the opposite of confessing would be denying.
• The correct answer is Option 4.

Additional Information

• Option 1, Revealed: This means to make known or to disclose, which is not the opposite of confessing. ((गुप्‍त या पूर्वतः अज्ञात वस्‍तु को) प्रकट करना, रहस्‍य खोल लेना)
• Option 2, Recognised: This means to identify or acknowledge the existence of something, which is not the opposite of confessing. (किसी को पहचानना (पहले देखे या सुने को दुबारा जानना))
• Option 3, Acknowledged: This means to admit the existence or truth of something, which is similar to confessing but not the opposite. (किसी बात की सचाई को स्‍वीकार करना; मान लेना, मान्‍यता देना)

The correct answer is "has a bee in her bonnet".

Key Points

• "Talks incessantly" describes someone who constantly, or without stopping, talks about a particular thing. (लगातार बात करना) 
• "Has a bee in her bonnet" is an idiom that means someone is obsessed with something and talks about it constantly. 
  • Example- She always has a bee in her bonnet about cleanliness.

Therefore, the correct answer is 'Option 2'.

Additional Information 

• Let’s have a look at the meaning of the remaining options.
• "Put a bee on someone" means to try to obtain money from, as for a loan or donation.(ऋण या दान के रूप में धन प्राप्त करने का प्रयास करना)
• "Gives a buzz" typically means to call someone on the phone. Its meaning in the Devanagari script is (किसी को फ़ोन करना).
• "Makes a bee line" means to head straight for something. Its meaning in Devanagari script is (सीधा जाना).

The correct answer is 'Option 1' i.e. 'The young author has written a thought-provoking novel.'

 Key Points

• The given sentence is in the Present Perfect Passive Voice. The corresponding Active form would be in Present Perfect tense.
• The main action (written a novel) is completed in relation to the present.
• The subject of the passive sentence ('the young author') becomes the subject of the active one.
• The correct verb form for the Active voice, Present Perfect tense is 'has written'.

Therefore, the correct answer is - 'The young author has written a thought-provoking novel.'

 Additional Information

• Option 2 is presenting an ongoing action in the present, which doesn't fit the context of the sentence.
• Option 3 is incorrect as it uses the past continuous tense, not the present perfect.
• Option 4 is expressing a future action which is not the case in the given sentence.