3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

A cow was standing on a bridge, 5m away from the middle of the bridge. A train was coming towards the bridge from the ends nearest to the cow. Seeing this cow ran towards the the train and managed to escape when the train was 2m away from bridge. If it had run in the opposite direction, it would hit by the train 2m before the end of the bridge. What is the lenght of the bridge in meters assuming the speed of the train is 4 times that of cow ?

A) 22 mts	B) 28 mts
C) 32 mts	D) 34 mts

Answer & Explanation Answer: C) 32 mts

Explanation:

let 'b' be the Length of bridge from cow to the near end of the bridge and 'a' be the distance of the train from the bridge.
'x' be speed of cow => '4x' speed of train
Then the total length of the bridge 2b + 10.
(a-2)/4x = b/x
=> a-2 = 4b........(1)
Now if it had run in opposite direction
(a+2b+10-2)/4x = (b+10-2)/x
=> a - 2b = 24......(2)
Solving (1) and (2)
b = 11 ,
Therefore length of the bridge is 2 x 11 + 10 = 32mts.

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Filed Under: Arithmetical Reasoning
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

64 21602

Q:

What is the next number in the series

4, 8 , 8, 16, 12, 24, __

A) 32	B) 48
C) 28	D) 16

Answer & Explanation Answer: D) 16

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

7 21565

Q:

Manoj, Prabhakar, Mash and Kamal are four friends. Who among them is the heaviest ''

I. Prabhakar is heavier than Manoj and Kamal but lighter than Akash.

II.Manoj is lighter than Prabhakar and Mask but heavier than Kamal.

A) If the data in statement I alone are sufficient to answer the question	B) If the data in statement II alone are sufficient answer the question
C) If the data either in I or II alone are sufficient to answer the question;	D) If the data in both the statements together are needed.

Answer & Explanation Answer: D) If the data in both the statements together are needed.

Explanation:

From I, we have, P > M, P > K, A > P.

From II we have, M > K, P > M, A > P.

Combining the above two, we have : A > P > M > K.

Thus, Akash is the heaviest. So, both the statements are required.

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Filed Under: Data Sufficiency

18 21534

Q:

In the following question, select the missing number from the given series.

119, 121, 124, 128, ?, 139

A) 130	B) 133
C) 131	D) 132

Answer & Explanation Answer: B) 133

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

6 21525

Q:

Choose the word which is least like the others word in a group?

A) Day	B) Calendar
C) Date	D) Month

Answer & Explanation Answer: B) Calendar

Explanation:

All others are parts of a calendar.

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Filed Under: Classification

99 21417

Q:

A is the son of B, C. B's sister has a son D and a daughter E. F is the maternal uncle of D. How many nephews does F have ?

A) 0	B) 1
C) 2	D) 3

Answer & Explanation Answer: C) 2

Explanation:

Clearly, F is the maternal uncle of D means F is the brother of D's mother i.e., F is the brother of C. C is the sister of B.

So, F is the brother of B who is A's mother. Thus. F is the maternal uncle of A. So, A and D are the nephews of F i.e., F has two nephews

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Filed Under: Blood Relations

39 21395

Q:

In the following question, select the missing number from the given series.

58, 61, 65, 70, ?, 83

A) 77	B) 76
C) 78	D) 75

Answer & Explanation Answer: B) 76

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

0 21365

Q:

In the following question, select the missing number from the given series.

64, 73, 83, 94, ?, 119

A) 108	B) 112
C) 106	D) 114

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