3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

Three of the following four are alike in a certain way and hence form a group. Which is the one that does not belong to that group?

A) 42	B) 72
C) 110	D) 152

Answer & Explanation Answer: D) 152

Explanation:

$42 = 7^{2} - 7$

$9^{2} - 9$ = 72

$11^{2} - 11$ = 110

$12^{2} + 8$ = 152

Except 152, others show the same trend.

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Filed Under: Classification
Exam Prep: AIEEE , Bank Exams , CAT
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20 5301

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 is E related to F ?

A) Sister	B) Daughter
C) Niece	D) Wife

Answer & Explanation Answer: C) Niece

Explanation:

E is the daughter of C and D is the son of C. So, F, who is the maternal uncle of D, is also the maternal uncle of E.

Thus, E is the niece of F.

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Filed Under: Blood Relations

0 5297

Q:

Assertion(A) : The pouring of kerosene oil on stagnant pools helps to eradicate malaria.
Reason(R) : The kerosene oil is poisonous for the mosquitoes.

A) R correctly explains A	B) R is true but A is fale
C) A is true but R is false	D) Both A and R are false

Answer & Explanation Answer: C) A is true but R is false

Explanation:

The kerosene oil sprayed on the water provodes a thin cating and the larvae of the mosquitoes are prevented from coming up to breathe. Thus, they die.
Hence, A is true but R is false.

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Filed Under: Assertion and Reason
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6 5297

Q:

Consider the following information and answer the questions based on it.

Out of 60 people in a colony, 10 speak only Bengali, 5 speak only Assamese, 10 speak both Hindi and Odia, 12 speak both Marathi and Hindi, 13 speak English, Tamil and Marathi, 5 speak both Assamese and Hindi and the remaining speak both Bengali and Hindi.

In all, how many people speak Hindi?

A) 22	B) 27
C) 32	D) 45

Answer & Explanation Answer: C) 32

Explanation:

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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

0 5282

Q:

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

16 x 8 - 4 ÷ 9 + 14 = 37

A) + and x	B) + and ÷
C) ÷ and -	D) - and +

Answer & Explanation Answer: C) ÷ and -

Explanation:

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

2 5282

Q:

In the given numbers, if in each number first digit is replaced by the third digit, second digit is replaced by the first digit and third digit is replaced by the second digit then which number will be the biggest ?

653 749 872 933 541

A) 933	B) 872
C) 749	D) 653

Answer & Explanation Answer: C) 749

Explanation:

From the given data,

EXP.

Largest number = 974

Therefore, the required number is 749.

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Filed Under: Arithmetical Reasoning
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11 5279

Q:

'BE' is related to 'GJ' in the same way as 'PS' is related to ?

A) VX	B) TU
C) UX	D) TV

Answer & Explanation Answer: C) UX

Explanation:

Each corresponding letter moves five places forward in the alphabet.
Here as BE is related to GJ then PS will relate to UX.

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Filed Under: Alphabet Test
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
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11 5277

Q:

How many independent words can 'STAINLESS' be divided into without changing the order of the letters and using each letter only once ?

A) 1	B) 2
C) 3	D) 4

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