3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

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

15, 21, 28, 34, ?, 47

A) 41	B) 40
C) 44	D) 43

Answer & Explanation Answer: A) 41

Explanation:

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Filed Under: Number Series
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1 16870

Q:

Choose apropriate words which gives a complete meaning to the sentence from the given options.

we were thinking ______ it _______ something like a requiem for our age.

A) for, because	B) for, as
C) of, as	D) of, since

Answer & Explanation Answer: C) of, as

Explanation:

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Filed Under: Inserting The Missing Character
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30 16870

Q:

Happiness is to 517768399 as senipah is to

A) 9836715	B) 9386615
C) 9386715	D) 9386517

Answer & Explanation Answer: C) 9386715

Explanation:

If each consecutive letter in "happiness" relates to the consecutive numbers in 517768399, then H=5, A=1, P=7, I=6, N=8, E=3 and S=9.

Using the numbers that relate to the letters in 'senipah', you will arrive at

SENIPAH = 9386715.

Hence, Happiness is to 517768399 as senipah is to 9386715.

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Filed Under: Coding and Decoding
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42 16858

Q:

Choose the missing terms out of the given alternatives Z, S, W, O, T, K, Q, G, ?, ?

A) N,D	B) N,C
C) O,D	D) O,C

Answer & Explanation Answer: B) N,C

Explanation:

The given sequence a combination of two series:
I)Z, W, T, Q, ? and II)S, O, K, G, ?

The pattern I is
Z - 3 = W
W - 3 = T
T - 3 = Q
Q - 3 = N

The pattern in II is
S - 4 = O
O - 4 = K
K - 4 = G
G - 4 = C

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Filed Under: Number Series

117 16844

Q:

Find the least number by which 175760 be divided to make it a perfect cube.

A) 6	B) 10
C) 9	D) 30

Answer & Explanation Answer: B) 10

Explanation:

175760 =2³ x 2 x 5 x 13³
= 2³ x 2 x 5 x 13³

To make perfect cube, it must be divided by 2 x 5 = 10

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Filed Under: Arithmetical Reasoning
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20 16821

Q:

Select the correct set of symbols

44 4 7 5 = 82

A) x, -, /	B) +, /, -
C) +, -, /	D) /, x, +

Answer & Explanation Answer: D) /, x, +

Explanation:

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Filed Under: Arithmetical Reasoning
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Q:

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

8, 16, ?, 64, 128

A) 30	B) 32
C) 28	D) 48

Answer & Explanation Answer: B) 32

Explanation:

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Filed Under: Number Series
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Q:

Hemant in order to go to university started from his house in the east and came to a crossing. The road to the left ends in a theatre, straight ahead is the hospital. In which direction is the university?

A) North	B) South
C) East	D) West

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