3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

Select the related number from the given alternatives.

39 : 52 :: 51 : ?

A) 53	B) 40
C) 68	D) 38

Answer & Explanation Answer: C) 68

Explanation:

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0 34215

Q:

In three coloured boxes - Red, Green and Blue, 108 balls are placed. There are twice as many balls in the green and red boxes combined as there are in the blue box and twice as many in the blue box as there are in the red box. How many balls are there in the green box ?

A) 18	B) 36
C) 45	D) None of these

Answer & Explanation Answer: D) None of these

Explanation:

Let R, G and B represent the number of balls in red, green and blue boxes respectively.

Then,

R + G + B = 108 ...(i),

G + R = 2B ...(ii)

B = 2R ...(iii)

From (ii) and (iii), we have G + R = 2x 2R = 4R or G = 3R.

Putting G = 3R and B = 2R in (i), we get:

R + 3R + 2R = 108 => 6R = 108 => R = 18.

Therefore Number of balls in green box = G = 3R = (3 x 18) = 54.

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178 34207

Q:

Select the related word/letters/number from the given alternatives.

TR : VX : : MK : ?

A) QP	B) QR
C) OQ	D) OP

Answer & Explanation Answer: C) OQ

Explanation:

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0 34183

Q:

Select the related word/letters/number from the given alternatives.

37 : 21 : : 29 : ?

A) 17	B) 28
C) 18	D) 19

Answer & Explanation Answer: C) 18

Explanation:

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0 34153

Q:

Select the related word/letters/number from the given alternatives.

GLIDERS : ERSDGLI : : TOASTER : ?

A) TERSTAO	B) TESRTOA
C) TERSTOA	D) TERRTOA

Answer & Explanation Answer: C) TERSTOA

Explanation:

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0 34145

Q:

Select the related word/letters/number from the given alternatives.

GROUPS : ITQWRU : : SECOND : ?

A) UGFQPE	B) UGEQPF
C) UEGQPF	D) UGEQFP

Answer & Explanation Answer: B) UGEQPF

Explanation:

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Exam Prep: Bank Exams

0 34139

Q:

What is the value of a two–digit number?

A. The sum of the digits is 15.
B. The difference of the squares of the digits is 45.
C. The difference of their digits is 3.

A) B and C together are sufficient	B) Any one pair of A and B, B and C or C and A is sufficient
C) C and A together are sufficient	D) A and B together are sufficient

Answer & Explanation Answer: B) Any one pair of A and B, B and C or C and A is sufficient

Explanation:

From the given data,

Let the two gits of a number be x & y

A) x + y = 15

B) $x^{2} - y^{2} = 45$

(x+y) (x - y) = 45

C) x - y = 3

From any 2 of the given 3 statements, we can find that 2 digit number as

2x = 18 => x = 9

=> y = 6

Hence, 2 digit number is 96.

Any one pair of A and B, B and C or C and A is sufficient to find.

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Filed Under: Arithmetical Reasoning
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4 34121

Q:

Select the related word/letters/number from the given alternatives.

72:90::156:?

A) 184	B) 168
C) 182	D) 176

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