3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

Out of 120 students in aschool, 5% can play all the three games Cricket, Chess and Carroms. If so happens that the number of players who can play any and only two games is 30. The number of students who can play the Cricket alone is 40. What is the total number of those who can play Chess alone or Carroms alone ?

A) 45	B) 44
C) 46	D) 24

Answer & Explanation Answer: B) 44

Explanation:

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Given U=120

5% of 120 = 6

Therefore, Students who can play Chess alone or Carroms alone = 120 - (30+40+6)= 44

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Filed Under: Logical Venn Diagram
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97 17637

Q:

8 is related to 81 in the same way as 64 is related to ____

A) 225	B) 425
C) 525	D) 625

Answer & Explanation Answer: D) 625

Explanation:

The relationship is $x^{y} : {(x + 1)}^{(y + 1)}$

Now , $64 = 4^{3}$

So, required number = ${(4 + 1)}^{(3 + 1)}$ = $5^{4}$ = 625

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Filed Under: Analogy
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129 17623

Q:

In the following question, select the missing number from the given series.

21, 11, 32, 43, 75, ?

A) 125	B) 153
C) 118	D) 97

Answer & Explanation Answer: C) 118

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

6 17622

Q:

A horse is facing north. It turns 90 degrees in the clockwise direction, then 180 degrees in the anti-clockwise and then another 90 degrees in the same direction. Which direction is the horse facing now?

A) East	B) South
C) Southwest	D) Southeast

Answer & Explanation Answer: B) South

Explanation:

Starting from the initial point facing north, the horse turns 90 degrees clockwise, which means it turns towards East. Similarly, the other directions can be considered and written as : EWS Thus, the direction it is facing now is South.

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Filed Under: Direction Sense Test

48 17615

Q:

Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is ?

A) 5	B) 4
C) 7	D) 6

Answer & Explanation Answer: A) 5

Explanation:

Let the number be x. Then,

$3 x^{2}$ - 4x = x + 50

$3 x^{2}$ - 5x - 50 = 0

(3x + 10)(x - 5) = 0

x = 5

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Filed Under: Arithmetical Reasoning
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16 17606

Q:

Arrange the given words in the sequence in which they occur in the dictionary.

i. Next
ii. Noisy
iii. Neutral
iv. Neither

A) iii, iv, i, ii	B) i, iv, iii, ii
C) ii, iii, i, iv	D) iv, iii, i, ii

Answer & Explanation Answer: D) iv, iii, i, ii

Explanation:

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Filed Under: Logical Sequence of Words
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0 17530

Q:

'P' walked 1 km towards south direction and turned $90^{o}$ ACW and walked 2 km. Then he turned his left and walked 1 km and then he turned his right and walked 2 km. After that he turned $90^{o}$ ACW and walked 3 km. How far is he from the starting point ?

A) 5 km	B) 4 km
C) 2 km	D) 0 km

Answer & Explanation Answer: A) 5 km

Explanation:

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Filed Under: Direction Sense Test
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85 17480

Q:

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

24 ÷ 8 x 25 + 8 - 3 = 2

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

Verbal Reasoning - Mental Ability Questions

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