RRB Group D Mock Test - 39


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100 Questions MCQ Test RRB (Group D) - Mock Tests & Previous Year Papers | RRB Group D Mock Test - 39

RRB Group D Mock Test - 39 for Railways 2022 is part of RRB (Group D) - Mock Tests & Previous Year Papers preparation. The RRB Group D Mock Test - 39 questions and answers have been prepared according to the Railways exam syllabus.The RRB Group D Mock Test - 39 MCQs are made for Railways 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for RRB Group D Mock Test - 39 below.
Solutions of RRB Group D Mock Test - 39 questions in English are available as part of our RRB (Group D) - Mock Tests & Previous Year Papers for Railways & RRB Group D Mock Test - 39 solutions in Hindi for RRB (Group D) - Mock Tests & Previous Year Papers course. Download more important topics, notes, lectures and mock test series for Railways Exam by signing up for free. Attempt RRB Group D Mock Test - 39 | 100 questions in 90 minutes | Mock test for Railways preparation | Free important questions MCQ to study RRB (Group D) - Mock Tests & Previous Year Papers for Railways Exam | Download free PDF with solutions
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RRB Group D Mock Test - 39 - Question 1

What is the name of the app which union government has launched to help farmers?

RRB Group D Mock Test - 39 - Question 2

Which of the following is the correct order starting from the largest to the smallest?

RRB Group D Mock Test - 39 - Question 3

Which of the following correctly explains the incidence of Income Tax in India?

Detailed Solution for RRB Group D Mock Test - 39 - Question 3

The central government has been empowered by Entry 82 of the Union List of Schedule VII of the Constitution of India to levy tax on all income other than agricultural income. The levy of income Tax is governed by the Indian Income Tax Act, 1961. The Income Tax Law comprises the Income Tax Act 1961, Income Tax Rules 1962, Notifications and Circulars issued by Central Board of Direct Taxes (CBDT), Annual Finance Acts and Judicial pronouncements by Supreme Court and High Courts.

RRB Group D Mock Test - 39 - Question 4

Which state is known as 'orchid paradise in India'?

RRB Group D Mock Test - 39 - Question 5

The Parliament consists of the

RRB Group D Mock Test - 39 - Question 6

Who among the following served as the Prime Minister of India for the shortest period in total?

RRB Group D Mock Test - 39 - Question 7

Which of the following type of Blood Cells are don’t contain Nuclei?

RRB Group D Mock Test - 39 - Question 8

The Brihadisvara Temple in Thanjavur was built by which ruler?

RRB Group D Mock Test - 39 - Question 9

Which of the following is the best conductor of electricity?

RRB Group D Mock Test - 39 - Question 10

Who became the first female judge to be appointed in the Pakistan’s National Sharia court?

RRB Group D Mock Test - 39 - Question 11

Which team has won the International Billiards and Snooker Federation Team World Cup in Doha, Qatar?

RRB Group D Mock Test - 39 - Question 12

When were the first Olympic Games of the Modern Era held?

RRB Group D Mock Test - 39 - Question 13

Headquarters of WTO (World Tourism Organization) is at?

RRB Group D Mock Test - 39 - Question 14

When was United Nations Organization Established?

RRB Group D Mock Test - 39 - Question 15

Vijay hazare trophy is related to which sport?

RRB Group D Mock Test - 39 - Question 16

The distance covered in half marathon is approximately

RRB Group D Mock Test - 39 - Question 17

The largest and the most powerful computer is

RRB Group D Mock Test - 39 - Question 18

The capital of which North Eastern state is Aizwal?

RRB Group D Mock Test - 39 - Question 19

What was the birthname of the Rani of Jhansi who fought during the Indian Rebellion of 1857?

RRB Group D Mock Test - 39 - Question 20

The Charminar was constructed in 1591 by Muhammad Quli Qutb Shah ...

RRB Group D Mock Test - 39 - Question 21

Which is the train running between India and Pakistan Twice a week?

RRB Group D Mock Test - 39 - Question 22

Railway board has been established in which year?

RRB Group D Mock Test - 39 - Question 23

Who is the CM of Tamil Nadu?

RRB Group D Mock Test - 39 - Question 24

Who is Dipak misra?

RRB Group D Mock Test - 39 - Question 25

Pakistan named its ballistic missiles in the memory of which ancient ruler?

RRB Group D Mock Test - 39 - Question 26

The term “Under Promoting” is used in which of the following?

RRB Group D Mock Test - 39 - Question 27

Which is the highest peak in India?

RRB Group D Mock Test - 39 - Question 28

Recently which Indian Navy Sail Boat has arrived in Cape Town, South Africa that is an All Indian Women Crew which is Circumnavigating the Globe?

RRB Group D Mock Test - 39 - Question 29

Which among the following country is NOT a member of OPEC(Organization of the Petroleum Exporting Countries)?

RRB Group D Mock Test - 39 - Question 30

SWIFT enables financial institutions across the countries to send and receive information in a secure way.What is 'I' in SWIFT?

RRB Group D Mock Test - 39 - Question 31

Who, among the following artists of India, is a Tabla player?

Detailed Solution for RRB Group D Mock Test - 39 - Question 31

Zakir Hussain is an Indian tabla player, musical producer, film actor and composer.
Amjad Ali Khan: Sarod ;
Nikhil Banerjee: Sitar;
Hari Prasad Chaurasia: Flute ; and Kaushik Roy : Guitar.

RRB Group D Mock Test - 39 - Question 32

The lens used to correct Astigmatism?

RRB Group D Mock Test - 39 - Question 33

Which of the following is not a correct classification of White Blood Cells?

RRB Group D Mock Test - 39 - Question 34

Wind glasses of vehicles are made of which type of glasses?

RRB Group D Mock Test - 39 - Question 35

Who was removed as the Minister of Information and Broadcasting when emergency was imposed in India in 1975?

RRB Group D Mock Test - 39 - Question 36

Hirakud Hydel Power project is located on which river?

RRB Group D Mock Test - 39 - Question 37

The force existing between two unlike charges is known as?

RRB Group D Mock Test - 39 - Question 38

Which of the following Prime Ministers of India was originally a swayamsevak with RSS?

RRB Group D Mock Test - 39 - Question 39

Sattriya is a dance form of which state?

RRB Group D Mock Test - 39 - Question 40

The defeat of which king in the Second battle of Tarain is generally agreed as the onset of Islamic conquest of India?

RRB Group D Mock Test - 39 - Question 41

How many Indian states does Narmada flow through?

RRB Group D Mock Test - 39 - Question 42

The oldest oil refinery in India is located at

RRB Group D Mock Test - 39 - Question 43

Muhammad Bin Tughlaq moved the capital city of his kingdom from Delhi to ….

RRB Group D Mock Test - 39 - Question 44

White Blood Cells or Lymphocytes arise from the stem cells in the bone marrow by which of the following processes?

RRB Group D Mock Test - 39 - Question 45

Which of the following gases are present in the atmosphere?

RRB Group D Mock Test - 39 - Question 46

Shahjahanabad is the ancient name given to the modern city of …

RRB Group D Mock Test - 39 - Question 47

Cairo is the capital of which country?

RRB Group D Mock Test - 39 - Question 48

Kidney in a human body is made up of about a million narrow tube-like structures called as?

RRB Group D Mock Test - 39 - Question 49

Which of the following instruments can be used to measure force or power?

RRB Group D Mock Test - 39 - Question 50

Which of the following gases is used in an electric bulb?

RRB Group D Mock Test - 39 - Question 51

UNICEF,Which was Established in 1946 has its headquarters in New York.What is the full form of 'E' in UNICEF?

RRB Group D Mock Test - 39 - Question 52

The famous ‘Dilwara Temples’ are situated in which state?

RRB Group D Mock Test - 39 - Question 53

What is the value of 1500 watts in terms of horse power?A.

RRB Group D Mock Test - 39 - Question 54

Which is the hardest substance on the earth?

Detailed Solution for RRB Group D Mock Test - 39 - Question 54

Diamond is the hardest substance on the earth.

RRB Group D Mock Test - 39 - Question 55

Using which of the models of an atom, we can infer that most of the mass of the atom is located in its nucleus?

RRB Group D Mock Test - 39 - Question 56

Dollu Kunita is a Dance form of which of the following states of India?

RRB Group D Mock Test - 39 - Question 57

Which of the following is a scientific term for excessive eating disorder?

RRB Group D Mock Test - 39 - Question 58

How long does light take to reach from sun to earth? (Approx.)

RRB Group D Mock Test - 39 - Question 59

Varistha pension Bima scheme is administrated by?

RRB Group D Mock Test - 39 - Question 60

Ratio of mass of proton and electron will be

RRB Group D Mock Test - 39 - Question 61

3 men and 2 women can complete a work in 12 days, then in how many days can 6 men and 4 women complete the work ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 61

3 men and 2 women can complete a work in 12 days

If persons are doubled, Days will be halved

Hence 6 men and 4 women can complete the work in 12/2 = 6 days

So the answer is option C.

RRB Group D Mock Test - 39 - Question 62

Find the distance covered by a boat in 30 mins during downstream, if its speed in still water is 7 kmph and speed of the stream is 5 kmph ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 62

Relative speed during downstream = 7+5 = 12 kmph

Time = 30 mins = 1/2 hr = 0.5 hrs

Distance = Speed*Time = 12*0.5 = 6 km

So the answer is option A.

RRB Group D Mock Test - 39 - Question 63

Find the length of the train travelling with 90 kmph if it crossed a 600m bridge in 56 seconds ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 63

Let x be the length of the train,

Speed = 90 kmph = 90*(5/18) = 25 m/s

Distance = Speed*time

x+600 = 25*(56) = 1400

x = 1400 - 600 = 800m

So the answer is option D.

RRB Group D Mock Test - 39 - Question 64

Find the ratio in which a dealer should mix sugar of 12/- per kg with another sugar of 18/- per kg so that he can sell the mixture at 20/- to earn 25% profit ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 64

Selling price of the mixture = 20/-

Profit % = 25%

1.25(CP) = 20

CP = 16/-

Let the ratio = m:n

12(m)+18(n) = 16(m+n)

12m + 18n = 16m + 16n

4m = 2n

m/n = 2/4 = 1/2

So the answer is option B.

RRB Group D Mock Test - 39 - Question 65

If the LCM and HCF of two numbers are 72 and 12 respectively. Find the second number if one number is 36 ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 65

Let x be the second number,

LCM*HCF = Product of two numbers

72*12 = 36*x

x = 24

So the answer is option A.

RRB Group D Mock Test - 39 - Question 66

What is the relation among mean, median & mode ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 66

Mode = 3(Median)-2(Mean)

Mode+2(Mean) = 3(Median)

So the answer is option C.

RRB Group D Mock Test - 39 - Question 67

find x ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 67

RRB Group D Mock Test - 39 - Question 68

2.1221-3.1331+4.1441 = ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 68

2.1221-3.1331+4.1441 = -1.0110+4.1441 = 3.1331

So the answer is option B.

RRB Group D Mock Test - 39 - Question 69

Find x2018, if 3x−4.5+2.4=−2.1

Detailed Solution for RRB Group D Mock Test - 39 - Question 69

3x−4.5+2.4=−2.1

3x-2.1 = - 2.13x−2.1=−2.1

3x = 03x=0

x = 0x=0

x2018=0

So the answer is option A.

RRB Group D Mock Test - 39 - Question 70

If the selling price of one article is 12/- and profit is 20%, what is the cost price of 12 articles?

Detailed Solution for RRB Group D Mock Test - 39 - Question 70

SP of 1 article = 12/-

Profit = 20%

1.2(CP)= 12

CP = 12/1.2 = 10/-

CP of 12 articles = 12*10 = 120/-

So the answer is option D.

RRB Group D Mock Test - 39 - Question 71

Find the value of 

 

Detailed Solution for RRB Group D Mock Test - 39 - Question 71

RRB Group D Mock Test - 39 - Question 72

Find the value of xx (from the given options), if 5=40−12x+x2 ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 72

RRB Group D Mock Test - 39 - Question 73

Find the total surface area of cuboid 40mmx30mmx15mm ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 73

Total surface area of cuboid = 2(lb+bh+hl) = 2[(40)(30)+(30)(15)+(15)(40)] = 2[1200+450+600] = 2[2250] = 4500 sq.mm

So the answer is option B.

RRB Group D Mock Test - 39 - Question 74

Find the equation of the line passing through (2, 3) and (-4, 15) ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 74

RRB Group D Mock Test - 39 - Question 75

The sum of the ages of Ravi and his younger brother Chinna is 30. The difference in their ages is 14. What is the ratio of the age of Ravi to the age of Chinna?

Detailed Solution for RRB Group D Mock Test - 39 - Question 75

Let x, y are the ages of Ravi and chinna

x+y = 30 ----(1)

x-y = 14 -----(2)

add (1) & (2)

x+y+x-y = 30+14

2x = 44

x = 22 then y = 8

Ratio = x/y = 22/8 = 11/4 = 11:4

So the answer is option A.

RRB Group D Mock Test - 39 - Question 76

Detailed Solution for RRB Group D Mock Test - 39 - Question 76


So the answer is option D.

RRB Group D Mock Test - 39 - Question 77

Find the relative position of the minutes hand with respect to the hours hand at 5:28 pm ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 77


 

At 5:28,

Angle made by hours hand = 5(30°)+28(0.5°) = 150°+14° = 164°

Angle made by minutes hand = 28(6°) = 168°

Hence, minutes hand crossed hours hand

So the answer is option C.

RRB Group D Mock Test - 39 - Question 78

Find 12% of 40% of 120% of 200 ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 78

12% of 40% of 120% of 200 = (0.12)(0.4)(1.2)(200) = (0.12)(0.4)(240) = (0.12)(96) = 11.52

So the answer is option B.

RRB Group D Mock Test - 39 - Question 79

Find the ratio of the compound interest and simple interest for 2 years on 2000/- at 10% per annum ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 79

RRB Group D Mock Test - 39 - Question 80

Pipe A can fill a tank in 2 hrs and pipe B can empty the tank in 2.5 hrs, then find the time in which the tank would be filled if both pipes are opened at the same time ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 80

Let the capacity of tank = LCM of 2 and 2.5 = 10 units

Filling efficiency of pipe A = 10/2 = 5 units/hr

Emptying efficiency of pipe B = 10/2.5 = 4 units/hr

If both pipes are opened,

The tank will be filled in 10/(5-4) = 10/(1) = 10 hrs

So the answer is option A.

RRB Group D Mock Test - 39 - Question 81

Find the incorrect number in the following series:
12, 17, 25, 36, 50, 68

Detailed Solution for RRB Group D Mock Test - 39 - Question 81

17 - 12 = 5
25 - 17 = 8
36 - 25 = 11
50 - 36 = 14
As we can see, the difference between 2 consecutive numbers in the series are in an AP.
The next term must be 50 + 17 = 67.
Therefore, 68 is the incorrect term in the series and hence, option D is the right answer.

RRB Group D Mock Test - 39 - Question 82

Find the incorrect number in the following series:

2, 4, 36, 48, 150, 252, 392

Detailed Solution for RRB Group D Mock Test - 39 - Question 82


As we can see, the square of a number is subtracted from its cube for even numbers. Therefore, the sixth term must have been 180 instead of 252. Therefore, 252 is the incorrect term and hence, option A is the right answer.

RRB Group D Mock Test - 39 - Question 83

Find the incorrect number in the following series:

2, 6, 12, 20, 30, 48, 56 , 72

Detailed Solution for RRB Group D Mock Test - 39 - Question 83

1*2 = 2
2*3 = 6
3*4 = 12
4*5 = 20
5*6 = 30
6*7 = 42
7*8 = 56
8*9 = 72
As we can see, 48 is the incorrect term in the series. Therefore, option B is the right answer.

RRB Group D Mock Test - 39 - Question 84

In a language, ‘Hell is well’ is coded as ‘ras al gul’ and ‘deep well’ is coded as ‘ta gul’. Which of the following can be the code for ‘Hell is deep’?

Detailed Solution for RRB Group D Mock Test - 39 - Question 84

The code for ‘well’ must be ‘gul’.
This implies that the code for ‘deep’ must be ‘ta’.

The code for ‘Hell’ and ‘is’ is ‘ras’ and ‘al’ in any order. 
Therefore, the code for ‘Hell is deep’ must contain ‘ras’, ‘al’ and ‘ta’ . 
Only option B satisfies this condition and hence, it is the right answer.

RRB Group D Mock Test - 39 - Question 85

If ‘Car is war’ is coded as ‘la pa ga’ and ‘war is not fair’ is coded as ‘ga rw nu pa’, which of the following cannot be the code for ‘car is fair’?

Detailed Solution for RRB Group D Mock Test - 39 - Question 85

The code for ‘car’ is ‘la’ and the code for ‘fair’ can be either ‘rw’ or ‘nu’. The code for ‘is’ can be either pa’ or ‘ga’.

Therefore, the code must contain ‘la’, exactly one among ‘rw’ and ‘nu’ and exactly one among ‘pa’ and ‘ga’. Option D violates this condition and hence, option D is the right answer.

RRB Group D Mock Test - 39 - Question 86

If ‘play while you play’ is coded as ‘ta da ta na’ and ‘you study’ is coded as ‘da ra’, which of the following can be the code for ‘study while you study’?

Detailed Solution for RRB Group D Mock Test - 39 - Question 86

’Play’ is used twice and ‘ta’ is used twice in the code. Therefore, the code for ‘play’ must be ‘ta’. ‘You’ is common to both the sentences and ‘da’ is common to both the codes. Therefore, the code for ‘you’ must be ‘da’ and the code for ‘study’ must be ‘ra’. The code for ‘study while you study’ must contain 2 ‘ra’s, one ‘da’ and one ‘na’. Only option B satisfies these conditions and hence, option D is the right answer.

RRB Group D Mock Test - 39 - Question 87

Which of the following options must continue the series?
CEF, HJK, MOP, ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 87

CEF - One letter is skipped between C and E. 
After F, one letter is skipped.

HJK - One letter is skipped between H and J.
After K, L is skipped.

MOP - One letter ‘N’ is skipped between M and O.

After P, one letter must be skipped. Therefore, the next term must start with R.
After R, one term must be skipped. Therefore, the next term must be RTU. Hence, option C is the right answer.

RRB Group D Mock Test - 39 - Question 88

Which of the following options will bear the same relationship as the words given in the first part of the question?
India : Hindi :: World : ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 88

Hindi is the largest spoken language in India. Similarly, the largest spoken language in the World is Mandarin. Therefore, option C is the right answer.

RRB Group D Mock Test - 39 - Question 89

Which of the following options will bear the same relationship as the words given in the first part of the question?
Cyclone : India :: ? : China

Detailed Solution for RRB Group D Mock Test - 39 - Question 89

Tropical storms are known as Cyclones in India and other countries bordering the Indian ocean. They are known as Typhoons in the countries bordering the Pacific Ocean. China borders Pacific ocean and hence, option B is the right answer.

RRB Group D Mock Test - 39 - Question 90

Choose the option that bears the same relationship with the letter given in the second part of the question as the letters given in the first part of the question:

CE:O :: BD: ?

Detailed Solution for RRB Group D Mock Test - 39 - Question 90

Let us replace the letters with their position in the alphabetical series.
CE - 3*5 = 15
O is the fifteenth letter in the alphabetical series.

Using the same logic, BD - 2*4 = 8
H is the eighth letter in the alphabetical series.

Therefore, option A is the right answer.

RRB Group D Mock Test - 39 - Question 91

Statements
The most expensive city in India to live is Mumbai. 
Conclusions
I. It is cheaper to live in Delhi when compared to Mumbai. 
II. Indore is the cheapest city to live.

Detailed Solution for RRB Group D Mock Test - 39 - Question 91

Since Mumbai is the costliest city, Delhi will be comparatively cheaper. Thus, conclusion I follows. 
Further, we cannot conclude which city is cheaper to live. Thus, conclusion II does not follow. 
Hence, option A is the right answer.

RRB Group D Mock Test - 39 - Question 92

Statements
The demand for steel in India is greater than the production. 
Conclusions
I. India must start exporting steel. 
II. Domestic prices of steel have risen.

Detailed Solution for RRB Group D Mock Test - 39 - Question 92

Since steel demand is greater than supply, the domestic prices would rise. Thus, conclusion II follows. 
Further, exporting steel would further widen the domestic demand-supply gap. Thus, conclusion I does not follow. 
Hence, option B is the right answer.

RRB Group D Mock Test - 39 - Question 93

Statements
Kids better understand scientific concepts when examples are used. 
Conclusions
I. Examples make sure that kids will apply scientific concepts practically. 
II. The books must have more statistics to explain the scientific concepts.

Detailed Solution for RRB Group D Mock Test - 39 - Question 93

We just know that example helps in understanding the theories. Nothing can be said about practical explanation. Thus, conclusion I does not follow. 
Further, we cannot conclude from the given information if statistics helps in understanding. Thus, conclusion II does not follow.
Hence, option C is the right answer.

RRB Group D Mock Test - 39 - Question 94

Find the odd one out.

Detailed Solution for RRB Group D Mock Test - 39 - Question 94

Except for shark, all others are mammals. Hence, option B is the correct answer.

RRB Group D Mock Test - 39 - Question 95

Find the odd one out.

Detailed Solution for RRB Group D Mock Test - 39 - Question 95

Except for Normal Force, others are opposing forces. Hence, option A is the correct answer.

RRB Group D Mock Test - 39 - Question 96

Find the odd one out.

Detailed Solution for RRB Group D Mock Test - 39 - Question 96

Tango is a dance form. Others are forms of martial arts. Hence, option C is the correct answer.

RRB Group D Mock Test - 39 - Question 97

If 67 # 48 = 19 and 11 $ 16 = 176, then what is the value of 17 $ 8 # 31?

Detailed Solution for RRB Group D Mock Test - 39 - Question 97

17 $ 8 # 31 = 17 * 8 - 31 = 105
Hence, option B is the right answer.

RRB Group D Mock Test - 39 - Question 98

ritesh walks 17 m to his left. He then takes a right turn and walks 20 m to reach a temple. He takes a left turn and walks 100 m to reach his office. Then, he takes a left turn and walks 60 m to reach a shop. From the shop, he takes a left turn and walks 20 m to reach his house. How far is Hritesh’s house from the temple?

Detailed Solution for RRB Group D Mock Test - 39 - Question 98

The given statements can be expressed diagrammatically as follows:


 

We have to calculate the distance between the Temple and the house. Therefore, the distance travelled before reaching the temple is immaterial and we have to treat the temple as the starting point.

Total distance travelled horizontally= 100 - 20100−20 = 8080 m.
Total distance travelled vertically = 6060 m. 
Distance from the starting point can be found using the Pythagoras theorem.

RRB Group D Mock Test - 39 - Question 99

P, Q and R belong to the same family. P’s mother’s sister’s son’s brother’s father is the son-in-law of R. Q is the son of the father of the granddaughter of P’s mother’s father. How is Q related to R?

Detailed Solution for RRB Group D Mock Test - 39 - Question 99

P’s mother’s sister’s son’s brother’s father is P’s uncle. P’s uncle is the son-in-law of R. Therefore, R must be P’s grandparent.

Q is the son of the father of the granddaughter of P’s mother’s father. P’s mother’s father is either R or R’s husband. Q is the son of the father of the grand daughter of P or his/her cousin. Therefore, Q can be either the brother or the cousin of P.

Q is a male member belonging to P’s generation. Therefore, Q must be the grandson of R. Hence, option C is the right answer.

RRB Group D Mock Test - 39 - Question 100

In the following diagram, triangle represents people who can sing, circle represents people who can dance and hexagon represents people who can paint.

If the number of people who know to do exactly 2 of the above mentioned things is equal to the number of people who know to do exactly one thing, then the number of people who can paint is

 

 

Detailed Solution for RRB Group D Mock Test - 39 - Question 100

Number of people who can do exactly 2 out of the 3 activities = 12 + 21 + 20 = 53.
Let the missing value be ‘x’.
Number of people who can do exactly one of the 3 activities = 23 + 7 + x = 30 + x.
It has been given that 30+x = 53
x = 23
Number of people who can paint = 12+8+20+23 = 63.
Therefore, option D is the right answer.

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