Mental Ability, Analytical and Logical Reasoning (UPSC) Part-III

Total Questions: 50

21. If B is selected and Y is rejected, team will consist of which one of the following groups?

(a) A, B, C and W
(b) A, B, C and Z
(c) A, B, C and X
(d) A, W, Y and Z

Correct Answer: (c) A, B, C and X

Solution:If B is selected, W shall not be selected. So, options (a) and (d) are out. As C cannot play with Z, option (b) is also out. Hence, (c) is the correct answer.

22. If all the three males are selected, then how many combination of four member teams are possible?

(a) 1
(b) 2
(c) 3
(d) 4

Correct Answer: (b) 2

Solution:

If males A, B and C are selected, we need to select only one more person to make up a four-member team. As B is selected, W cannot be selected and as C is selected, Z cannot be selected. So the choice is between X and Y. Then we have the following possibilities:
(A, B, C, X) and (A, B, C, Y)

So, we have two options for the team.

23. The music director of film wants to select four persons to work on different aspects of the composition of a piece of music. Seven persons are available for this work: they are Rohit, Tanya, Shobha, Kaushal, Kunal, Mukesh and Jaswant. [2013-II]

Rohit and Tanya will not work together. Kunal and Shobha will not work together. Mukesh and Kunal want to work together.

Which of the following is the most acceptable group of people that can be selected by the music director?

(a) Rohit, Shobha, Kunal and Kaushal
(b) Tanya, Kaushal, Shobha and Rohit
(c) Tanya, Mukesh, Kunal and Jaswant
(d) Shobha, Tanya, Rohit and Mukesh

Correct Answer: (c) Tanya, Mukesh, Kunal and Jaswant

Solution:As, Rohit and Tanya will not work together. Therefore, option (b) and (d) are out.
As, Kunal and Shobha will not work together. Therefore, option (a) is also out.
Hence, option (c) is the correct answer.

24. Five people A, B, C, D and E are seated about a round table. Every chair is spaced equidistant from adjacent chairs. [2013-II]

(i) C is seated next to A.

(ii) A is seated two seats from D.

(iii) B is not seated next to A.

Which of the following must be true?

(I) D is seated next to B.

(II) E is seated next to A.

Select the correct answer from the codes given below:

(a) I only
(b) II only
(c) Both I and II
(d) Neither I nor II

Correct Answer: (c) Both I and II

Solution:From the given conditions, two cases are possible as shown below:

Hence, in any case, both the conditions are true.

25. Who does not play hockey? [2013-II]

(a) D
(b) C
(c) B
(d) A

Correct Answer: (d) A

Solution:

Players	Football	Cricket	Hockey	Basket ball
A	√	√	×	√
B	√	√	√	×
C	×	√	√	√
D	√	×	√	√

26. Who plays football, basketball and hockey?

(a) D
(b) C
(c) B
(d) A

Correct Answer: (a) D

Solution:

Players	Football	Cricket	Hockey	Basket ball
A	√	√	×	√
B	√	√	√	×
C	×	√	√	√
D	√	×	√	√

27. Which game do B, C and D play?

(a) Basketball
(b) Hockey
(c) Cricket
(d) Football

Correct Answer: (b) Hockey

Solution:

Players	Football	Cricket	Hockey	Basket ball
A	√	√	×	√
B	√	√	√	×
C	×	√	√	√
D	√	×	√	√

28. Geeta is older than her cousin Meena. Meena's brother Bipin is older than Geeta. When Meena and Bipin visit Geeta, they like to play chess. Meena wins the game more often than Geeta. [2013-II]

Based on the above information, four conclusions, as given below, have been made.

Which one of these logically follows from the informaton given above?

(a) While playing chess with Geeta and Meena, Bipin often loses.
(b) Geeta is the oldest among the three.
(c) Geeta hates to lose the game.
(d) Meena is the youngest of the three.

Correct Answer: (d) Meena is the youngest of the three.

Solution:From the given information, we conclude that: Bipin is older than Geeta and Geeta is older than Meena.
Hence, Meena is the youngest of the three.

29. There are five hobby clubs in a college viz, photography, yachting, chess, electronics and gardening. The gardening group meets every second day, the electronics group meets every third day, the chess group meets every fourth day, the yachting group meets every fifth day and the photography group meets every sixth day. How many times do all the five groups meet on the same day within 180 days? [2013-II]

(a) 3
(b) 5
(c) 10
(d) 18

Correct Answer: (a) 3

Solution:Take the LCM of 2, 3, 4, 5, 6 = 60
So every 60th day all five hobby clubs meet. So in a period of 180 days they meet thrice i.e. on 60th, 120th and 180th day.

30. A, B, C, D and E belong to five different cities P, Q, R, S and T (not necessarily in that order). Each one of them comes from a different city. Further it is given that [2013-II]

1. B and C do not belong to Q.

2. B and E do not belong to P and R.

3. A and C do not belong to R, S and T.

4. D and E do not belong to Q and T.

Which one of the following statements is not correct?

(a) C belongs to P
(b) D belongs to R
(c) A belongs to Q
(d) B belongs to S

Correct Answer: (d) B belongs to S

Solution:

	Cities→ Person↓	P	Q	R	S	T
A	×	√	×	×	×
B	×	×	×	×	√
C	√	×	×	×	×
D	×	×	√	×	×
E	×	×	×	√	×

B belongs to S is not correct.

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Mental Ability, Analytical and Logical Reasoning (UPSC) Part-III

21. If B is selected and Y is rejected, team will consist of which one of the following groups?

22. If all the three males are selected, then how many combination of four member teams are possible?

23. The music director of film wants to select four persons to work on different aspects of the composition of a piece of music. Seven persons are available for this work: they are Rohit, Tanya, Shobha, Kaushal, Kunal, Mukesh and Jaswant. [2013-II]

24. Five people A, B, C, D and E are seated about a round table. Every chair is spaced equidistant from adjacent chairs. [2013-II]

25. Who does not play hockey? [2013-II]

26. Who plays football, basketball and hockey?

27. Which game do B, C and D play?

28. Geeta is older than her cousin Meena. Meena's brother Bipin is older than Geeta. When Meena and Bipin visit Geeta, they like to play chess. Meena wins the game more often than Geeta. [2013-II]

30. A, B, C, D and E belong to five different cities P, Q, R, S and T (not necessarily in that order). Each one of them comes from a different city. Further it is given that [2013-II]

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