3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

Find the wrong number in the series

7, 28, 63, 124, 215, 342, 511

A) 28	B) 124
C) 215	D) 342

Answer & Explanation Answer: A) 28

Explanation:

Here the number follows the given rule

$2^{3} - 1, 3^{3} - 1, 4^{3} - 1, 5^{3} - 1, . . .$

But 28 has been given in problem series.

so 28 is wrong number.

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Filed Under: Number Series
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank PO

126 66831

Q:

A woman introduces a man as the son of the brother of her mother. How is the man, related to the woman ?

A) Nephew	B) Son
C) Cousin	D) Uncle to Grandson

Answer & Explanation Answer: C) Cousin

Explanation:

Brother of mother — Uncle: Uncle's son — Cousin

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Filed Under: Blood Relations

701 66625

Q:

If "A" means "subtraction", "B" means "division", "C" means "addition" and "D" means "multiplication", then

330 B 6 A 32 C 45 D 12 = ?

A) 525	B) 547
C) 582	D) 563

Answer & Explanation Answer: D) 563

Explanation:

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

2 66486

Q:

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

10 + 14 x 20 - 7 ÷ 10 = 40

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

47 66293

Q:

What would be the next number in the series

9, 8, 18, 6, 36, 4, 72, 2, 144, ?

A) 288	B) 1
C) 0	D) 576

Answer & Explanation Answer: C) 0

Explanation:

Here there are combination of two series.

1) 9, 18, 36, 72, 144

2) 8, 6, 4, 2, 0

Therefore, The next number in the given series is 0.

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Filed Under: Verbal Reasoning - Mental Ability
Exam Prep: Bank Exams
Job Role: Bank Clerk

9 66197

Q:

Which fraction comes next in the sequence

$\frac{2}{3}, \frac{1}{3}, \frac{5}{27}, \frac{7}{81}, ?$

A) 1/27	B) 11/278
C) 9/48	D) 7/123

Answer & Explanation Answer: A) 1/27

Explanation:

Clearly, the numerators of the fractions in the given sequence follow the series of 2, 3, 5, 7,... and the denominator follows 3, 9, 27, 81, 243, ...
Then, the next term in the given sequence is $\frac{9}{3^{5}} = \frac{9}{243} = \frac{1}{27}$ .

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Filed Under: Number Series
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

27 66046

Q:

How many pairs of letters in the word 'CHAIRS' have as many letters between them in the word as in the alphabet?

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

Answer & Explanation Answer: A) 2

Explanation:

Letters in the word Letters in the alphabet

$C H A - -$ $C B A - -$

$R S - -$ $R S - -$

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Filed Under: Alphabet Test

1850 65706

Q:

Select the related number from the given alternatives.

2.25 : 13/4 :: 3.75 : ?

A) 17/4	B) 19/4
C) 15/4	D) 11/4

Verbal Reasoning - Mental Ability Questions

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