3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

In the following set of numbers, if 1 is added to the last digit and then the orderr of digits is reversed, which number will be fourth if arranged in ascending order?

567 284 696 865 738

A) 567	B) 284
C) 865	D) 738

Answer & Explanation Answer: A) 567

Explanation:

Here the given numbers are

567 284 696 865 738

When 1 is added to the last digit of each of the above numbers, it becomes as follows :

568 285 697 866 739

After reversing the order of digits , we get

865 582 796 668 937

Now , when the numbers are arranged in ascending order their order becomes as follows:

582 668 796 865 937

Hence , the fourth number is 865 (a number formed by 567). Therefore option(1) is correct answer.

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Filed Under: Number, Ranking and Time Sequence Test

20 7552

Q:

Choose the number which is different from others in the group?

A) 183	B) 137
C) 121	D) 231

Answer & Explanation Answer: C) 121

Explanation:

121 is the only perfect square number in the group.

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Filed Under: Classification

37 7510

Q:

In a certain code language, '-' represents 'x', '÷' represents '+', '+' represents '÷' and 'x' represents '-'. Find out the answer to the following question.19 ÷ 2 - 35 + 10 x 6 = ?

A) 20	B) 14
C) 32	D) 16

Answer & Explanation Answer: A) 20

Explanation:

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Filed Under: Mathematical Operations

17 7482

Q:

Highbrow : Cultivated : : Suave : ?

A) egant	B) Urbane
C) Stylish	D) Broad-minded

Answer & Explanation Answer: B) Urbane

Explanation:

The words in each pair are synonyms .

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Filed Under: Analogy

26 7452

Q:

In a certain code language 'allow children to play on the ground' is written as 'play allow on children the to ground' then how will 'the do open not electric touch wires ' be coded from that language?

A) not the electric do touch open wires	B) do not touch the electric open wires
C) do not touch the open electric wires	D) not the do electric touch open wires

Answer & Explanation Answer: C) do not touch the open electric wires

Explanation:

For convenience , we assign numbers to each word :

allow children to play on the ground

1 2 3 4 5 6 7

It has been coded as :

play allow on children the to ground

4 1 5 2 6 3 7

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Hence the given code is :

the do open not electric touch wires

4 1 5 2 6 3 7

Now arranging them as 1 2 3 4 5 6 7, we have "do not touch the open electric wires'.

Hence, option (3) is correct answer.

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Filed Under: Coding and Decoding

22 7421

Q:

Six books are kept one above the other. Hindi is just above Sanskrit. The English is between Mathematics and Science. Law is between Hindi and Mathematics. Which book is at the fourth position from top?

A) Mathematics	B) Law
C) Hindi	D) English

Answer & Explanation Answer: B) Law

Explanation:

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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

22 7403

Q:

A group of 1200 persons consisting of boys and girls is travelling in a Bus. For every 15 boys there is one girl. The number of girls in the group is ?

A) 60	B) 65
C) 70	D) 75

Answer & Explanation Answer: D) 75

Explanation:

If there are x girls, then
x + 15x = 1200
16x = 1200
x= 1200/16 = 75

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Filed Under: Arithmetical Reasoning
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank PO

4 7399

Q:

According to the given Venn diagram, the total number of students who play cricket as well as Kabaddi but not football is ___.

A) V	B) R
C) U	D) T

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