3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

In the following question, select the related word pair from the given alternatives.

Circumference : Circle : : ? : ?

A) Cube : Volume	B) Square : Area
C) Sphere : Circle	D) Perimeter : Rectangle

Answer & Explanation Answer: D) Perimeter : Rectangle

Explanation:

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12 71490

Q:

Fill in the blank with a suitable word from the given words.

All the efforts of the batsmen went _____ vain as the bowlers failed to perform well.

A) for	B) off
C) in	D) out

Answer & Explanation Answer: C) in

Explanation:

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12 71409

Q:

Which alphabet replaces the question mark ?

63 O 49
72 T 37
96 L 15
14 ? 58

A) A	B) B
C) C	D) D

Answer & Explanation Answer: C) C

Explanation:

6-3 = 3 9-4 = 5 (3x5=15) 15=O
7-2 = 5 7-3 = 4 (5x4=20) 20=T
9-6 = 3 5-1 = 4 (3x4=12) 12=L

Similarly, 4-1 = 3 8-5 = 1 (3x1=3) 3=C

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Filed Under: Alphabet Test
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43 71392

Q:

AND FOR THE BIG SUM

If second alphabet in each of the words is changed to next alphabet in the English alphabetical order, How many words having two vowels will be formed?

A) None	B) One
C) Two	D) Three

Answer & Explanation Answer: C) Two

Explanation:

When the second alphabets in each of the words are changed to the next alphabet in the English alphabetical order, we have

AOD FPR TIE BJG SVM

Clearly, there two words having two vowels. These words are AOD and TIE

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25 71104

Q:

Antonym of the word

DOLEFUL :

A) Lamentable	B) Dismal
C) Pitiful	D) Glad

Answer & Explanation Answer: D) Glad

Explanation:

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22 70887

Q:

In the following question, select the related word pair from the given alternatives.

River : Krishna : : ? : ?

A) Planet : Sun	B) Mountain : K2
C) Moon : Satellite	D) Earth : Grass

Answer & Explanation Answer: B) Mountain : K2

Explanation:

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13 70776

Q:

In the following question, select the related letter pair from the given alternatives.

APX : BQY : : ? : ?

A) JRA : KTB	B) JLM : KMP
C) CSN : DTO	D) AXP : BZR

Answer & Explanation Answer: C) CSN : DTO

Explanation:

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Q:

Find the missing number in the following series?

2, 3, 10, 39, ?, 885

A) 128	B) 156
C) 172	D) 189

Answer & Explanation Answer: C) 172

Explanation:

Take a Look at the below sereies

$2 \times 1 + (1^{2}) = 3$

$3 \times 2 + (2^{2}) = 10$

$10 \times 3 + (3^{2}) = 39$

$39 \times 4 + (4^{2}) = 172$

$172 \times 5 + (5^{2}) = 885$

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75 69702

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