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

Total Questions: 50

31. Seven men, A, B, C, D, E, F and G are standing in a queue in that order. Each one is wearing a cap of different colour like violet, indigo, blue green, yellow, orange and red. D is able to see in front of him green and blue, but not violet. E can see violet and yellow, but not red. G can see caps of all colours other than orange. If E is wearing an indigo coloured cap, then the colour of the cap worn by F is [2013-II]

(a) Blue
(b) Violet
(c) Red
(d) Orange

Correct Answer: (c) Red

Solution:

The key point in this question is "A person can see caps of all persons standing in front of him but can’t see his own cap and caps of persons standing behind him."

From the given data, we can summarize all the information in a table:

Person	Cap
A / B / C	Green / Blue / Yellow
D	Violet
E	Indigo
F	Red
G	Orange

32. In a class of 45 students, a boy is ranked 20th. When two boys joined, his rank was dropped by one. What is his new rank from the end? [2013-II]

(a) 25th
(b) 26th
(c) 27th
(d) 28th

Correct Answer: (c) 27th

Solution:Initial strength of class = 45
Now, new strength = 47
The boy's rank is dropped by one. Now, his rank becomes 21.
Total number of boys in class =
Boy's rank from starting + Boy's rank from end - 1
∴ Boy's rank from end = 47 - 21 + 1 = 27

33. Four friends A, B, C and D distribute some money among themselves in such a manner that A gets one less than B, C gets 5 more than D, D gets 3 more than B. Who gets the smallest amount? [2013-II]

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

Correct Answer: (a) A

Solution:

According to the question:

A = B - 1

B = A + 1

C = D + 5

D = B + 3

According to the above equation, we get except A, all others got some more amounts. So, A gets the smallest amount.

34. A question paper must have a question on one of the eight poets: A, B, C, D, E, F, G or H. The first four belong to the medieval period while the rest are considered modern poets. Generally, modern poets figure in the question paper in alternate years. Generally those who like H like G also; and those who like F like E also. The paper-setter does not like to ask about F as he has written a book on F, but he likes F. Last year, the paper contained a question on A. On the basis of the information given, this year's paper is most likely to contain a question on [2014-II]

(a) C
(b) E
(c) F
(d) H

Correct Answer: (b) E

Solution:

Medieval Period Poets = A, B, C, D
Modern Period Poets = E, F, G, H

Option (a) is eliminated as it is a modern poet. Question on modern poet will come in next year.

Option (c) is eliminated as the paper-setter does not like to ask about F.

Option (b) is appropriate as the paper-setter likes F and those who like F like E also.

35. In a group of six women there are four dancers, four vocal musicians, one actress and three violinists. Girija and Vanaja are among the violinists while Jalaja and Shailaja do not know how to play on the violin. Shailaja and Tanuja are among the dancers. Jalaja, Vanaja, Shailaja and Tanuja are all vocal musicians and two of them are also violinists. If Pooja is an actress, who among the following is certainly a dancer and a violinist ? [2014-II]

(a) Jalaja
(b) Pooja
(c) Shailaja
(d) Tanuja

Correct Answer: (d) Tanuja

Solution:

Women	Dancers	Musicians	Actress	Violinists
Girija				✔
Vanaja		✔		✔
Jalaja		✔		χ
Shailaja	✔	✔		χ
Tanuja	✔	✔		✔
Pooja			✔

36. The letters L, M, N, O, P, Q, R, S and T in their order are substituted by nine integers 1 to 9 but not in that order. 4 is assigned to P. The difference between P and T is 5. The difference between N and T is 3. What is the integer assigned to N? [2014-II]

(a) 7
(b) 5
(c) 4
(d) 6

Correct Answer: (d) 6

Solution:

Difference between P & T is 5 i.e., T = 5 + 4 = 9
Difference between N & T is 3 i.e., N = 9 - 3 = 6
So, integer assigned to N = 6

37. The number of deaths among the army personnel is 8 in 1000, but among the civilian population it is 20 per 1000. Which one of the following inferences can be drawn from this statement? [2014-II]

(a) It is better to join the army.
(b) The relationship is fortuitous.
(c) Quality of Life Index is very high within the armed forces.
(d) The groups cannot be compared due to their heterogeneity.

Correct Answer: (d) The groups cannot be compared due to their heterogeneity.

38. Given the statement: "Buses are the cause of more accidents than cars, and trucks cause fewer accidents than buses", which of the following conclusions can we draw ? [2014-II]

(a) There are more buses on the road than trucks.
(b) Car drivers are more careful than bus drivers.
(c) Truck drivers are more skilled than either car or bus drivers.
(d) None of the above

Correct Answer: (d) None of the above

39. If political leadership fails to emerge, there is Q likelihood of military taking over power in developing countries. Radical student groups or labour may try to raise revolution but they are not likely to compete with the military. Military intervention, rule, and withdrawal from politics is closely related to a society's level of political development." In the context of political development, the assumption in the above passage is that [2014-II]

(a) political leadership is not an effective instrument.
(b) military fills in political vacuum.
(c) military intervention is inevitable for development.
(d) None of the above

Correct Answer: (b) military fills in political vacuum.

40. Four persons, Alok, Bhupesh, Chander and Dinesh have a total of 100 among themselves. Alok and Bhupesh between them have as much money as Chander and Dinesh between them, but Alok has more money than Bhupesh; and Chander has only half the money that Dinesh has. Alok has in fact ₹5 more than Dinesh has. Who has the maximum amount of money? [2014-II]

(a) Alok
(b) Bhupesh
(c) Chander
(d) Dinesh

Correct Answer: (a) Alok

Solution:

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

32. In a class of 45 students, a boy is ranked 20th. When two boys joined, his rank was dropped by one. What is his new rank from the end? [2013-II]

33. Four friends A, B, C and D distribute some money among themselves in such a manner that A gets one less than B, C gets 5 more than D, D gets 3 more than B. Who gets the smallest amount? [2013-II]

36. The letters L, M, N, O, P, Q, R, S and T in their order are substituted by nine integers 1 to 9 but not in that order. 4 is assigned to P. The difference between P and T is 5. The difference between N and T is 3. What is the integer assigned to N? [2014-II]

37. The number of deaths among the army personnel is 8 in 1000, but among the civilian population it is 20 per 1000. Which one of the following inferences can be drawn from this statement? [2014-II]

38. Given the statement: "Buses are the cause of more accidents than cars, and trucks cause fewer accidents than buses", which of the following conclusions can we draw ? [2014-II]

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