Verbal Reasoning - Mental Ability Questions

Q:

Find by how much percentage the average of first 10 odd numbers (starting from 1) is greater than the last term ?

A) 991/16 % B) 900/19 %
C) 874/13 % D) 719/17 %
 
Answer & Explanation Answer: B) 900/19 %

Explanation:

First ten odd numbers form an arithmetic progression of the form
1,3,5,7,9......
here a = first term = 1
d = common difference = 2
Average of first n numbers = (2a + (n - 1)d)/2
n th term of the AP = a + (n - 1)d
Substituting a = 1, d = 2 and n = 10 in the above formulas
average of first 10 numbers = 10
10 th term of the AP = 19
Therefore average of first 10 terms is 19 - 10 = 9 greater than
the last term. Hence the average is greater than the sum by
9/19 X 100 = 900/19 %

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Filed Under: Arithmetical Reasoning
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4 4109
Q:

2, 16, 3, 81, 4, ?

A) 99 B) 125
C) 256 D) 396
 
Answer & Explanation Answer: C) 256

Explanation:

The given number series is 2, 16, 3, 81, 4, ?

2

2^4 = 16

3

3^4 = 81

4

4^4 = 256

 

Hence, the next number is 256.

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12 4093
Q:

Three of the following four are alike in a certain way and hence form a group. Which is the one that does not belong to that group?

A) 8314 B) 3249
C) 2518 D) 1315
 
Answer & Explanation Answer: A) 8314

Explanation:

In all numbers except 8314, the sum of first three digits is equal to the unit's digit. 

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21 4082
Q:

9 tens 10 ones equals

A) 910 B) 90
C) 91 D) 100
 
Answer & Explanation Answer: D) 100

Explanation:

9 tens 10 ones equals

=> 9 x 10 + 10 x 1

=> 90 + 10

=> 100.

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2 4081
Q:

7/9 of the people present in a hall are sitting in 9/13 of the chairs available and the rest are standing. If there are 28 empty 9 sitting chairs, how many chairs would have been still empty if everyone in the hall was sitting?

A) 15 B) 12
C) 18 D) 10
 
Answer & Explanation Answer: D) 10

Explanation:
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39 4071
Q:

In a certain code language, “book is tough” is written as “fu la mi”, “tough can easy” is written as “fu muk po” and “easy not book” is written as “ti po la”. What is the code for “tough” in that code language?

A) mi B) po
C) la D) fu
 
Answer & Explanation Answer: D) fu

Explanation:
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Filed Under: Coding and Decoding
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1 4057
Q:

People who are bald are generally of the intellectual type.Arun is bald.Therefore Arun is an intellectual

A) False B) Probably true
C) True D) Can't say
 
Answer & Explanation Answer: B) Probably true

Explanation:
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19 4037
Q:

a _ c _ abb _ a _ bc _ bc _ ab

A) c b c a a a B) b c c c a b
C) b c c a a c D) a c b a b c
 
Answer & Explanation Answer: C) b c c a a c

Explanation:

The series is a b c c a b | b c a a b c | a b c c a b

Here, the pattern a b c c a b | b c a a b c is repeated alternatively.

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4 4033