3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

If A + B = 2C and C + D = 2A, then

A) A + C = B + D	B) A + C = 2D
C) A + D = B + C	D) A + C = 2B

Answer & Explanation Answer: A) A + C = B + D

Explanation:

Given,

A + B = 2C ----(i)

C + D = 2A----(ii)

Adding (i) and (ii) we get : A + B + C + D = 2C + 2A

=> B + D = A + C

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Filed Under: Mathematical Operations
Exam Prep: AIEEE , Bank Exams , GRE , TOEFL
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506 34132

Q:

Select the related word/letters/numbers from the given alternatives:

BECD:GJHI :: LOMN:?

A) PSRQ	B) PQRS
C) QTSR	D) QTRS

Answer & Explanation Answer: D) QTRS

Explanation:

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Filed Under: Analogy
Exam Prep: Bank Exams

0 34125

Q:

In each of the following questions find out the alternative which will replace the question mark.

Zenith : Nadir :: ?:?

A) Indigent : Poverty	B) Zeal : Eagerness
C) Success : Peak	D) Genuine : Phony

Answer & Explanation Answer: D) Genuine : Phony

Explanation:

Zenith means the time at which something is most powerful and Nadir means the lowest or most unsuccessful point in a situation. Both words are opposite to each other.

Genuine means authentic and phony means fraudulent or not genuine. Both are also opposite in meaning.

Zenith : Nadir :: Genuine : Phony

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Filed Under: Analogy

0 34121

Q:

Select the related word/letters/number from the given alternatives.

WD : TF : : TG : ?

A) QR	B) QI
C) IQ	D) IP

Answer & Explanation Answer: B) QI

Explanation:

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Filed Under: Analogy
Exam Prep: Bank Exams

0 34090

Q:

What is to be replaced in place of '?' in the following series ?

$A_{2} B C, ?, A B C_{4}, A_{5} B C$

A) $A_{3} B C$

B) $A B C_{3}$

C) $A B_{3} C$

D) $A_{2} B_{3} C_{4}$

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

Answer & Explanation Answer: C) Option C

Explanation:

Because the letters are the same, concentrate on the number series, which is a simple 2, 3, 4, 5, 6 series, and follows each letter in order.

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

6 34035

Q:

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

18 x 12 3 ÷ 10 + 2 = 64

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

4 33984

Q:

In three coloured boxes - Red, Green and Blue, 108 balls are placed. There are twice as many balls in the green and red boxes combined as there are in the blue box and twice as many in the blue box as there are in the red box. How many balls are there in the green box ?

A) 18	B) 36
C) 45	D) None of these

Answer & Explanation Answer: D) None of these

Explanation:

Let R, G and B represent the number of balls in red, green and blue boxes respectively.

Then,

R + G + B = 108 ...(i),

G + R = 2B ...(ii)

B = 2R ...(iii)

From (ii) and (iii), we have G + R = 2x 2R = 4R or G = 3R.

Putting G = 3R and B = 2R in (i), we get:

R + 3R + 2R = 108 => 6R = 108 => R = 18.

Therefore Number of balls in green box = G = 3R = (3 x 18) = 54.

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Filed Under: Arithmetical Reasoning

178 33949

Q:

Select the related word/letters/number from the given alternatives.

ZWU : TQO:: LIG : ?

A) EFG	B) FCA
C) DEF	D) EFC

Verbal Reasoning - Mental Ability Questions

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