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Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC

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Question 1: DIRECTIONS: Read the information given below and answer the six items that follow.
A, B, C and D are students. They are studying in four different cities, viz., P, Q, R and S (not necessarily in that order). They are studying in Science college, Arts college, Commerce college and Engineering college (not necessarily in that order), which are situated in four different States, viz., Gujarat, Rajasthan, Assam and Kerala (not necessarily in that order). Further, it is given that
(i) D is studying in Assam 
(ii) Arts college is located in city S which is in Rajasthan 
(iii) A is studying in Commerce college 
(iv) B is studying in city Q 
(v) Science college is located in Kerala

Science college is located in    [2018-II]
(a) city Q
(b) city S
(c) city R
(d) city P

Correct Answer is Option (a)
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 2: DIRECTIONS: Read the information given below and answer the six items that follow.
A, B, C and D are students. They are studying in four different cities, viz., P, Q, R and S (not necessarily in that order). They are studying in Science college, Arts college, Commerce college and Engineering college (not necessarily in that order), which are situated in four different States, viz., Gujarat, Rajasthan, Assam and Kerala (not necessarily in that order). Further, it is given that
(i) D is studying in Assam 
(ii) Arts college is located in city S which is in Rajasthan 
(iii) A is studying in Commerce college 
(iv) B is studying in city Q 
(v) Science college is located in Kerala

C is studying in    [2018-II]
(a) Science college
(b) Rajasthan
(c) Gujarat
(d) city Q

Correct Answer is Option (b)
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 3: DIRECTIONS: Read the information given below and answer the six items that follow.
A, B, C and D are students. They are studying in four different cities, viz., P, Q, R and S (not necessarily in that order). They are studying in Science college, Arts college, Commerce college and Engineering college (not necessarily in that order), which are situated in four different States, viz., Gujarat, Rajasthan, Assam and Kerala (not necessarily in that order). Further, it is given that
(i) D is studying in Assam 
(ii) Arts college is located in city S which is in Rajasthan 
(iii) A is studying in Commerce college 
(iv) B is studying in city Q 
(v) Science college is located in Kerala

Which one of the following statements is correct?    [2018-II]
(a) D is not studying in city S.
(b) A is studying in Science college.
(c) A is studying in Kerala.
(d) Engineering college is located in Gujarat.

Correct Answer is Option (a)
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 4: DIRECTIONS: Read the information given below and answer the six items that follow.
A, B, C and D are students. They are studying in four different cities, viz., P, Q, R and S (not necessarily in that order). They are studying in Science college, Arts college, Commerce college and Engineering college (not necessarily in that order), which are situated in four different States, viz., Gujarat, Rajasthan, Assam and Kerala (not necessarily in that order). Further, it is given that
(i) D is studying in Assam 
(ii) Arts college is located in city S which is in Rajasthan 
(iii) A is studying in Commerce college 
(iv) B is studying in city Q 
(v) Science college is located in Kerala

Which one of the following statements is correct regarding Engineering college?    [2018-II]
(a) C is studying there.
(b) B is studying there.
(c) It is located in Gujarat.
(d) D is studying there.

Correct Answer is Option (d)
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 5: DIRECTIONS: Read the information given below and answer the six items that follow.
A, B, C and D are students. They are studying in four different cities, viz., P, Q, R and S (not necessarily in that order). They are studying in Science college, Arts college, Commerce college and Engineering college (not necessarily in that order), which are situated in four different States, viz., Gujarat, Rajasthan, Assam and Kerala (not necessarily in that order). Further, it is given that
(i) D is studying in Assam 
(ii) Arts college is located in city S which is in Rajasthan 
(iii) A is studying in Commerce college 
(iv) B is studying in city Q 
(v) Science college is located in Kerala

Which one of the following statements is correct?    [2018-II]
(a) Engineering college is located in Assam.
(b) City Q is situated in Assam.
(c) C is studying in Kerala.
(d) B is studying in Gujarat
.

Correct Answer is Option (a)
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 6: Consider the following sum :    
• + 1• + 2• + •3 + •1 = 21•
In the above sum, • stands for    [2018-II]

(a) 4
(b) 5
(c) 6
(d) 8

Correct Answer is Option (d)
According to pattern,
when * = 8 then,
8 + 18 + 28 + 83 + 81 = 218
So, option (d) is correct answer.


Question 7: Consider the following pattern of numbers:
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
What is the number at ? in the above pattern?    [2018-II]
(a) 17 
(b) 19 
(c) 21 
(d) 23

Correct Answer is Option (a)
According to question
As, (8 + 4) – 6 = 6
(10 + 6) – 5 = 11
(15 + 8) – 7 = 16
So, (13 + 8) – 4 = 17


Question 8: A solid cube of 3 cm side, painted on all its faces, is cut up into small cubes of 1 cm side. How many of the small cubes will have exact1y two painted faces.    [2018-II]
(a) 12 
(b) 8 
(c) 6 
(d) 4

Correct Answer is Option (a)
Each small cube lying at the middle of each edge of the large cube has exactly two painted faces.
Since there are 12 faces in the given large cube therefore there are exactly 12 small cubes which have exactly two painted faces.
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 9: If Pen < Pencil, Pencil < Book and Book > Cap, then which one of the following is always true?    [2018-II]
(a) Pen > Cap 
(b) Pen < Book 
(c) Pencil = Cap 
(d) Pencil > Cap

Correct Answer is Option (b)
According to question.
Pen < Pencil < Book > Cap
So, Pen < Book is always true.


Question 10: DIRECTIONS : Rotated positions of a single solid are shown below. The various faces of the solid are marked with different  symbols like dots, cross and line. Answer the three items that follow the given figures.
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC

What is the symbol on the face opposite to that containing a single dot?    [2018-II]

(a) Four dots 
(b) Three dots 
(c) Two dots 
(d) Cross

Correct Answer is Option (b)
We can see line, two dots toward one end of the line and three dots toward other end of the line.


Question 11: DIRECTIONS : Rotated positions of a single solid are shown below. The various faces of the solid are marked with different  symbols like dots, cross and line. Answer the three items that follow the given figures.
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC

What is the symbol on the face opposite to that containing two dots?    [2018-II]
(a) Single dot 
(b) Three dots 
(c) Four dots 
(d) Line

Correct Answer is Option (c)
We can see, two dots, and four dots are on opposite faces.


Question 12: DIRECTIONS : Rotated positions of a single solid are shown below. The various faces of the solid are marked with different  symbols like dots, cross and line. Answer the three items that follow the given figures.
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC

What is the symbol on the face opposite to that containing the cross?    [2018-II]
(a) Single dot 
(b) Two dots 
(c) Line 
(d) Four dots

Correct Answer is Option (c)
Line and cross are on opposite faces.


Question 13: Consider the figures given below :
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
To fit the question mark, the correct answer is    [2018-II]
(a) Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
(b) Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
(c) Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
(d) Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC

Correct Answer is Option (a)
We can consider each picture formed with an unique body (B) and an unique set of legs (L). Then
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 14: Consider the following figures :
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
In the figures (I) to (VI) above, some parts are shown to change their positions in regular directions. Following the same sequence, which of the figures given below will appear at (VII) stage?    [2017-II]
(a) Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
(b) Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
(c) Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
(d) Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC

Correct Answer is Option (b)
According to figure.
Square element moves clockwise direction in each step and triangle element moves anticlockwise direction in each step.
So, option (b) is correct answer.


Question 15: Lakshmi, her brother , her daughter and her son are badminton players. A game of doubles is a bout to begin:

(i) Lakshmi’s brother is directly across the net from her daughter.
(ii) Her son is diagonally across the net from the worst player’s sibling.
(iii) The best player and the worst player are on the same side of the net.
Who is the best player?    [2018-II]
(a) Her brother
(b) Her daughter
(c) Her son
(d) Lakshmi

Correct Answer is Option (a)
Lakshmi is the worst player and Lakshmi's brother is the best player,
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 16: Consider the sequence given below :
4/12/95, 1/1/96, 29/1/96, 26/2/96, ....
What is the next term of the series?    [2018-II]
(a) 24/3/96 
(b) 25/3/96 
(c) 26/3/96 
(d) 27/3/96

Correct Answer is Option (b)
Each next date is given in the series is comes after 28 days from previous date.
Hence next date = 26/2/96 + 28 days = 25/3/96


Question 17: DIRECTIONS : Consider the given information and answer the three items that follow.
Eight railway stations A, B, C, D, E, F, G and H are connected either by two way passages or one way passages. One way passages are from C to A, E to G, B to F, D to H, G to C, E to C and H to G. Two way passages are between A and E, G and B, F and D, and E and D.
While travelling from C to H, which one of the following stations must be passed through.    [2017-II]
(a) G 
(b) E 
(c) B 
(d) F

Correct Answer is Option (b)
‘→’ Denotes one way, ‘ ⇔ ’ Denotes two way.
C → A, E → C, E → G, H → G
B → F, A ⇔ E, D → H, G ⇔ B
G → C,F ⇔ D,E ⇔ D
C ↔ A, A ⇔ E ⇔ D ↔ H


Question 18: DIRECTIONS : Consider the given information and answer the three items that follow.
Eight railway stations A, B, C, D, E, F, G and H are connected either by two way passages or one way passages. One way passages are from C to A, E to G, B to F, D to H, G to C, E to C and H to G. Two way passages are between A and E, G and B, F and D, and E and D.
In how many different ways can a train travel from F to A without passing through any station more than once?    [2017-II]
(a) 1
(b) 2
(c) 3
(d) 4

Correct Answer is Option (d)
‘→’ Denotes one way, ‘ ⇔ ’ Denotes two way.
C → A, E → C, E → G, H → G
B → F, A ⇔ E, D → H, G ⇔ B
G → C,F ⇔ D,E ⇔ D
F — D — E — C — A  or  F — D — H — G — C – A,

or
F — D — E — A  or  F — D — E — G — C – A.
So, 4 ways.


Question 19: DIRECTIONS : Consider the given information and answer the three items that follow.
Eight railway stations A, B, C, D, E, F, G and H are connected either by two way passages or one way passages. One way passages are from C to A, E to G, B to F, D to H, G to C, E to C and H to G. Two way passages are between A and E, G and B, F and D, and E and D.
If the route between G and C is closed, which one of the following stations need not be passed through while travelling from H to C?    [2017-II]
(a) E 
(b) D 
(c) A 
(d) B

Correct Answer is Option (c)
H — G — B — F — D — E – C.
So, nowhere we have to travel through A.


Question 20: In a school, there are five teachers A, B, C, D and E, A and B teach Hindi and English. C and B teach English and Geography. D and A teach Mathematics and Hindi. E and B teach History and French. Who teaches maximum number of subjects.    [2017-II]
(a) A 
(b) B 
(c) D 
(d) E

Correct Answer is Option (b)
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 21: DIRECTIONS : Consider the given information and answer the three items that follow.
A, B, C, D, E, F and G are Lecturers from different cities-Hyderabad, Delhi, Shillong, Kanpur, Chennai, Mumbai and Srinagar (not necessarily in the same order) who participated in a conference. Each one of them ' is specialized in a different subject, viz, Economics, Commerce, History, Sociology, Geography, Mathematics and Statistics (not necessarily in the same order). Further
1. Lecturer from Kanpur is specialized in Geography 
2. Lecturer D is from Shillong 
3. Lecturer C from Delhi is specialized in Sociology 
4. Lecturer B is specialized in neither History nor Mathematics 
5. Lecturer A who is specialized in Economics does not belong to Hyderabad 
6. Lecturer F who is specialized in Commerce belongs to Srinagar 
7. Lecturer G who is specialized in Statistics belongs to Chennai
Who is specialized in Geography?    [2017-II]
(a) B 
(b) D 
(c) E 
(d) Cannot be determined as data are inadequate

Correct Answer is Option (a)
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 22: DIRECTIONS : Consider the given information and answer the three items that follow.
A, B, C, D, E, F and G are Lecturers from different cities-Hyderabad, Delhi, Shillong, Kanpur, Chennai, Mumbai and Srinagar (not necessarily in the same order) who participated in a conference. Each one of them ' is specialized in a different subject, viz, Economics, Commerce, History, Sociology, Geography, Mathematics and Statistics (not necessarily in the same order). Further
1. Lecturer from Kanpur is specialized in Geography 
2. Lecturer D is from Shillong 
3. Lecturer C from Delhi is specialized in Sociology 
4. Lecturer B is specialized in neither History nor Mathematics 
5. Lecturer A who is specialized in Economics does not belong to Hyderabad 
6. Lecturer F who is specialized in Commerce belongs to Srinagar 
7. Lecturer G who is specialized in Statistics belongs to Chennai
To which city does the Lecturer specialized in Economics belong?    [2017-II]
(a) Hyderabad 
(b) Mumbai 
(c) Neither Hyderabad nor Mumbai 
(d) Cannot be determined as data are inadequate

Correct Answer is Option (b)
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 23: DIRECTIONS : Consider the given information and answer the three items that follow.
A, B, C, D, E, F and G are Lecturers from different cities-Hyderabad, Delhi, Shillong, Kanpur, Chennai, Mumbai and Srinagar (not necessarily in the same order) who participated in a conference. Each one of them ' is specialized in a different subject, viz, Economics, Commerce, History, Sociology, Geography, Mathematics and Statistics (not necessarily in the same order). Further
1. Lecturer from Kanpur is specialized in Geography 
2. Lecturer D is from Shillong 
3. Lecturer C from Delhi is specialized in Sociology 
4. Lecturer B is specialized in neither History nor Mathematics 
5. Lecturer A who is specialized in Economics does not belong to Hyderabad 
6. Lecturer F who is specialized in Commerce belongs to Srinagar 
7. Lecturer G who is specialized in Statistics belongs to Chennai
Who of the following belongs to Hyderabad?    [2017-II]
(a) B 
(b) E 
(c) Neither B nor E 
(d) Cannot be determined as data are inadequate

Correct Answer is Option (b)
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 24: The average rainfall in a city for the first four days was recorded to be 0.40 inch. The rainfall on the last two days was in the ratio of 4:3. The average of six days was 0.50 inch. What was the rainfall on the fifth day?    [2017-II]
(a) 0.60 inch
(b) 0.70 inch
(c) 0.80 inch
(d) 0.90 inch

Correct Answer is Option (c)
The sum of rainfall for the first four days
= 4 × 0.40 = 1.60 inch
The Sum of rainfall for six days = 0.50 × 6 = 3.00 inch
⇒ Sum of rainfall for last two days = 3.00 – 1.60 = 1.40 inch
Rainfall on 5th day = (4/7)x1.40 inch = 0.80 inch.


Question 25: In a certain code, '256' means 'red colour chalk', '589' means "green colour flower' and '254' means 'white colour chalk'. The digit in the code that indicates 'white' is    [2017-II]
(a) 2 

(b) 4 
(c) 5 
(d) 8

Correct Answer is Option (b)
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 26: Consider the following :
A, B, C, D, E, F, G and H are standing in a row facing North.
B is not neighbour of G.
F is to the immediate right of G and neighbour of E.
G is not at the extreme end.
A is sixth to the left of E.
H is sixth to the right of C.
Which one of the following is correct in respect of the above?    [2017-II]
(a) C is to the immediate left of A.
(b) D is immediate neighbour of B and F.
(c) G is to the immediate right of D.
(d) A and E are at the extreme ends.

Correct Answer is Option (c)

The given information can be represented as – A  C  B  D  G  F  E  H

Hence, G is the immediate right of D.


Question 27: The outer surface of a 4 cm × 4 cm × 4 cm cube is painted completely in red. It is sliced parallel to the faces to yield sixty four 1 cm × 1 cm × 1 cm small cubes. How many small cubes do not have painted faces?    [2017-II]
(a) 8 
(b) 16 
(c) 24 
(d) 36

Correct Answer is Option (a)
Total number of small cubes do not have painted faces = (4 – 2)3 = 8.


Question 28: Consider the following relationships among members of a family of six persons A, B, C, D, E and F:
1. The number of males equals that of females.
2. A and E are sons of F.
3. D is the mother of two, one boy and one girl.
4. B is the son of A.
5. There is only one married couple in the family at present.

Which one can be drawn from following the given inferences?     [2017-II]
(a) A, B and C are all females. 
(b) A is the husband of D. 
(c) E and F are children of D. 
(d) D is the daughter of F

Correct Answer is Option (b)

A is the husband of D.
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC


Question 29: Examine the following statements :
1. All colours are pleasant.
2. Some colours are pleasant.
3. No colour is pleasant
4. Some colours are not pleasant.

Given that statement 4 is true, what can be definitely concluded?    [2017-II]
(a) 1 and 2 are true.
(b) 3 is true.
(c) 2 is false.
(d) 1 is false.

Correct Answer is Option (d)
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
1. False
2. Can’t say
3. Can’t say
Hence (i) is false.


Question 30: In a test, Randhir obtained more marks than the total marks obtained by Kunal and Debu. The total marks obtained by Kunal and Shankar are more than those of Randhir. Sonal obtained more marks than Shankar. Neha obtained more marks than Randhir. Who amongst them obtained highest marks?    [2017-II]
(a) Randhir 
(b) Neha 
(c) Sonal 
(d) Data are inadequate

Correct Answer is Option (d)
Randhir > (Kunal + Debu) ...(i)
(Kunal + Shankar) > Randhir ...(ii)
Sonal > Shankar ...(iii)
Neha > Randhir ...(iv)
From above equation we can not be find who amongst them obtained highest marks.
So, data are inadequate.


Question 31: Which of the following statements is/are correct regarding biopesticides? 
1. They are not hazardous to human health. 
2. They are persistent in environment. 
3. They are essential to maintain the biodiversity of any ecosystem.
Select the correct answer using the code given below.    [2017-II]
(a) 1 only 
(b) 1 and 2 only 
(c) 1 and 3 only 
(d) 1, 2 and 3

Correct Answer is Option (a)
Biopesticides are not hazardous to human health but they are not essential to maintain the biodiversity of any ecosystem.


Question 32: Six boys A, B, C, D, E and F play a game of cards. Each has a pack of 10 cards. F borrows 2 cards from A and gives away 5 to C who in turn gives 3 to B while B gives 6 to D who passes 1 to E. Then the number of cards possessed by D and E is equal to the number of cards possessed by    [2017-II]
(a) A, B and C 
(b) B, C and F 
(c) A, B and F 
(d) A, C and F

Correct Answer is Option (b)
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
Hence, D + E = B + C + F.


Question 33: Consider the given statement and the two conclusions that follow :
Statement : Morning walk is good for health.
Conclusions :
1. All healthy people go for morning walk.
2. Morning walk is essential for maintaining good health.
What is/are the valid conclusion/ conclusions?     [2017-II]
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

Correct Answer is Option (d)
Morning walk is good for health. But, that it is essential cannot be concluded. Again, it is not the only means of maintaining good health; so, that all healthy people go for morning walk cannot be concluded.


Question 34: P = (40% of A) + (65% of B) and Q = (50% of A)+ (50% of B), where A is greater than B.
In this context, which of the following statements is correct?    [2017-II]
(a) P is greater than Q. 
(b) Q is greater than P. 
(c) P is equal to Q. 
(d) None of the above can be concluded with certainty.

Correct Answer is Option (d)
None of the above can be concluded with certainty.


Question 35: In a group of six women, there are four tennis players, four postgraduates in Sociology, one postgraduate in Commerce and three bank employees. Vimala and Kamla are the bank employees while Amala and Komala are unemployed. Komala and Nirmala are among the tennis players. Amala, Kamla, Komala and Nirmala are postgraduates in Sociology of whom two are bank employees. If Shyamala is a postgraduate in Commerce, who among the following is both a tennis player and a bank employee?    [2017-II]
(a) Amala 
(b) Komala 
(c) Nirmala 
(d) Shyamala

Correct Answer is Option (c)
The given information can be represented as :-
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
Hence, Nirmala is both a tennis player and a bank employee.


Question 36: Consider the following :
A + B means A is the son of B.
A – B means A is the wife of B.
What does the expression P + R - Q mean?    [2017-II]
(a) Q is the son of P.
(b)  Q is the wife of P.
(c) Q is the father of P.
(d)  None of the above

Correct Answer is Option (c)
P + R – Q
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
Hence, Q is the Father of P.


Question 37: 15 students failed in a class of 52. After removing the names of failed students, a merit order list has been prepared in which the position of Ramesh is 22nd from the top. What is his position from the bottom?    [2017-II]
(a) 18th 
(b) 17th 
(c) 16th 
(d) 15th

Correct Answer is Option (c)
Total number of students after removing the names of failed students = 52 – 15 = 37
Position of Ramesh from top = 22nd
So, Position of Ramesh from bottom = (37 + 1 – 22) = 16th


Question 38: "Rights are certain advantageous conditions of social well-being indispensable to the true development of the citizen."
In the light of this statement, which one of the following is the correct understanding of rights?    [2017-II]
(a) Rights aim at individual good only. 
(b) Rights aim at social good only. 
(c) Rights aim at both individual and social good. 
(d) Rights aim at individual good devoid of social wellbeing.

Correct Answer is Option (c)
Except (c) other options are absurd.


Question 39: Consider the following :
Statement : Good voice is a natural gift but one has to keep practising to improve and excel well in the field of music.
Conclusions:
I. Natural gifts need nurturing and care.
II. Even though one's voice is not good, one can keep practising.
Which one of the following is correct in respect of the above statement and conclusions?    [2017-II]

(a) Only conclusion I follows from the statement.
(b) Only conclusion II follows from the statement.
(c) Either conclusion I or conclusion II follows from the statement.
(d) Neither conclusion I nor conclusion II follows from the statement.

Correct Answer is Option (a)
Let us apply basic logic. Conclusion I definitely.

Follows as that is the main assertion given.

Conclusion II is incorrect, as it says "Even though one's voice is not good, one can keep practicing". It is an assumption. Hence best answer is (a).


Question 40: The sum of income of A and B is more than that of C and D taken together. The sum of income of A and C is the same as that of B and D taken together. Moreover, A earns half as much as the sum of the income of B and D.
Whose income is the highest?    [2017-II]
(a) A
(b) B
(c) C
(d) D

Correct Answer is Option (b) 
According to question,
A + B > C + D ...(i)
A + C = B + D ...(ii)
So,
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
Mental Ability, Analytical & Logical Reasoning- Solved Questions(1995-2020)- 2 - Notes | Study UPSC Topic Wise Previous Year Questions - UPSC
From equation (i) and (iii) B > D
From equation (i), (ii), (iii) and (iv)
B > A = C > D
So, B' income is the highest.

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