3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

Find the odd man out of the series 4, 5, 9, 18, 32, 59

A) 18	B) 5
C) 59	D) 32

Answer & Explanation Answer: D) 32

Explanation:

In the given series,

2nd term = 1st term + $1^{2}$ = 4 +1 = 5

3rd term = 2nd term + $2^{2}$ =5+4= 9

4th term = 3rd term + $3^{2}$ =9+9=18

5th term = 4th term + $4^{2}$ = 18+16=34

Therefore, odd term is 32

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

19 6472

Q:

How many numbers amogst the numbers 9 to 54 are there which are exactly divisible by 9 but not by 3 ?

A) 5	B) 6
C) 0	D) 9

Answer & Explanation Answer: C) 0

Explanation:

Any number divisible by 9 is also divisible by 3.

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Filed Under: Number, Ranking and Time Sequence Test

15 6470

Q:

If wall is called window, window is called door, door is called floor, floor is called roof and roof is called ventilator, What will a person stand on ?

A) Window	B) Wall
C) Floor	D) Roof

Answer & Explanation Answer: D) Roof

Explanation:

A person will stand on the floor and floor is called roof. So, a person will stand on the roof

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Filed Under: Coding and Decoding

26 6468

Q:

In a certain code language, "ARMS" is written as "5467" and "LIAR" is written as "1254". How is "SMALL" written in that code language?

A) 76521	B) 76512
C) 76511	D) 76544

Answer & Explanation Answer: C) 76511

Explanation:

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

1 6436

Q:

In the following question, various terms of an alphanumerical series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. Q1F, S2E, U6D, W21C, ?

A) Z88B	B) Y88B
C) Y44B	D) K25P

Answer & Explanation Answer: B) Y88B

Explanation:

The first letter moves two steps forward. The last letter moves one steps backward. The number series runs as follows :
1 x 1 + 1 = 2
2 x 2 + 2 = 6
6 x 3 + 3 = 21
21 x 4 + 4 = 88.

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Filed Under: Number Series

9 6428

Q:

If three groups could be formed using the given figures only once, these groups would be ___.

A) (1,9,6), (2,5,7) and (3,4,8)	B) (1,9,6), (2,4,7) and (3,5,8)
C) (1,5,6), (3,4,7) and (2,9,8)	D) (1,9,6), (2,4,8) and (3,5,7)

Answer & Explanation Answer: B) (1,9,6), (2,4,7) and (3,5,8)

Explanation:

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Filed Under: Number, Ranking and Time Sequence Test
Exam Prep: Bank Exams

1 6422

Q:

In the following question, various terms of an alphanumerical series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. EJO, TYD, INS, XCH ?

A) NRW	B) NSX
C) MRW	D) MSX

Answer & Explanation Answer: C) MRW

Explanation:

There is a gap of four letters between the first and second, the second and third letters.
There is a gap of four letters between the last letter and the first letter of the next term.

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Filed Under: Number Series

17 6402

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.

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