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

Total Questions: 50

11. Who are the females in the group? [2011-II]

(a) C & E
(b) C&D
(c) E & A
(d) D & E

Correct Answer: (c) E & A

Solution:

12. Whose wife is the teacher? [2011-II]

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

Correct Answer: (d) B

Solution:

13. How many females voted for the proposal? [2011-II]

In a survey regarding a proposed measure to be introduced, 2878 persons took part of which 1652 were males. 1226 persons voted against the proposal of which 796 were males. 1425 persons voted for the proposal. 196 females were undecided.

(a) 430
(b) 600
(c) 624
(d) 640

Correct Answer: (b) 600

Solution:

	Total	Male	Female
Total	2878	1652	2878 – 1652 = 1226
Against	1226	796	430
Favour	1425	825	600
Undecided	227	31	196

Now, number of fernale voted against = 1226-796-430
Now, number of female voted for the proposal
No. of undecided = 2878 - (1226 + 1425) = 227
Now, No. of undecided male-227-196-31

14. How many males were undecided ? [2011-II]

(a) 31
(b) 227
(c) 426
(d) 581

Correct Answer: (c) 426

Solution:

	Total	Male	Female
Total	2878	1652	2878 – 1652 = 1226
Against	1226	796	430
Favour	1425	825	600
Undecided	227	31	196

Now, number of fernale voted against = 1226-796-430
Now, number of female voted for the proposal
No. of undecided = 2878 - (1226 + 1425) = 227
Now, No. of undecided male-227-196-31

15. How many females were not in favour of the proposal? [2011-II]

(a) 430
(b) 496
(c) 586
(d) 1226

Correct Answer: (a) 430

Solution:

	Total	Male	Female
Total	2878	1652	2878 – 1652 = 1226
Against	1226	796	430
Favour	1425	825	600
Undecided	227	31	196

Now, number of fernale voted against = 1226-796-430
Now, number of female voted for the proposal
No. of undecided = 2878 - (1226 + 1425) = 227
Now, No. of undecided male-227-196-31

16. In a queue, Mr. X is fourteenth from the front and Mr. Y is seventeenth from the end, while Mr. Z is exactly in between Mr. X and Mr. Y. If Mr. X is ahead of Mr. Y and there are 48 persons in the queue, how many persons are there between Mr. X and Mr. Z? [2011-II]

(a) 6
(b) 7
(c) 8
(d) 9

Correct Answer: (c) 8

Solution:Total number of persons in the queue = 48

Position of Mr. X from the front = 14

Position of Mr. Y from the end = 17

∴ Position of Mr. Y from the front = 48-17+1=32

Rank of Mr. Z from the front= 14+32/2 = 23

Thus total number of persons between Mr. X and Mr. Z = 23 - 14 - 1 = 8

17. Examine the following statements: [2011-II]

1. All animals are carnivorous.

2. Some animals are not carnivorous.

3. Animals are not carnivorous.

4. Some animals are carnivorous.

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

Correct Answer: (a) 1 & 3

Solution:Statements 1 and 3 contradict each-other, hence both statements cannot be true together. But there is a situation where in both statements are false that is if some of the animals are carnivorous and some are not.

18. Examine the following statements: [2011-II]

1. All trains are run by diesel engine.

2. Some trains are run by diesel engine.

3. No train is run by diesel engine.

4. Some trains are not run by diesel engine.

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

Correct Answer: (c) 1 & 3

Solution:Statement 1 and 3 contradict each-other, hence both statements cannot be true together. But there are a situation where in both statements are false that is if some of the trains are run on diesel engine and some are not.

19. There are four routes to travel from city A to city B and six routes from city B to city C. How many routes are possible to travel from the city A to city C? [2011-II]

(a) 24
(b) 12
(c) 10
(d) 8

Correct Answer: (a) 24

Solution:Total number of possible routes from the city A to city C = 4 x 6 = 24

20. Consider the following figure and answer the item that follows: [2011-II]

What is the minimum number of different colours required to paint the figure given above such that no two adjacent regions have the same colour?

(a) 3
(b) 4
(c) 5
(d) 6

Correct Answer: (a) 3

Solution:Suppose R, B and G are three different colours to paint the following figure.
Thus, there will be three different colours required to paint the figure at the given conditions.

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

11. Who are the females in the group? [2011-II]

12. Whose wife is the teacher? [2011-II]

13. How many females voted for the proposal? [2011-II]

14. How many males were undecided ? [2011-II]

15. How many females were not in favour of the proposal? [2011-II]

16. In a queue, Mr. X is fourteenth from the front and Mr. Y is seventeenth from the end, while Mr. Z is exactly in between Mr. X and Mr. Y. If Mr. X is ahead of Mr. Y and there are 48 persons in the queue, how many persons are there between Mr. X and Mr. Z? [2011-II]

17. Examine the following statements: [2011-II]

18. Examine the following statements: [2011-II]

19. There are four routes to travel from city A to city B and six routes from city B to city C. How many routes are possible to travel from the city A to city C? [2011-II]

20. Consider the following figure and answer the item that follows: [2011-II]

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