Question 1

NA

Accepted Answer

Only 'option (d) second number is twice of first number.

Question 2

NA

Accepted Answer

5-2=3, 19-16 =3,27 -23=4, 31-28=3.

Question 3

NA

Accepted Answer

In all others, middle number is the sum of other two numbers.

Question 4

NA

Accepted Answer

Except '14, 11 , 13', all remaining options having only even numbers.

Question 5

Find out the set among the four sets which is like the given set (13 : 20 : 27)

Accepted Answer

As, 13 + 7 = 20 ⇒ 20 +7 = 27 Similarly, 18 + 7 = 25 → 25 + 7 = 32

Question 6

NA

Accepted Answer

The Except 64-73 all are having difference of 11.

Question 7

NA

Accepted Answer

Except 210, all other are square of some numbers.

Question 8

NA

Accepted Answer

Except 28*, all others are multiples of 3.

Question 9

NA

Accepted Answer

In all other numbers, the sum of the first two digits is equal to the third digit.

Question 10

NA

Accepted Answer

Except 44, all are prime numbers.

Question 11

NA

Accepted Answer

Only 729 is a perfect cube.

Question 12

NA

Accepted Answer

Except 124, all other numbers are multiples of 3.

Question 13

NA

Accepted Answer

All except 18 are square of natural numbers. (5)2 = 25, (3)3 = 9, (4)2 = 16.

Question 14

NA

Accepted Answer

Except 267 , all other numbers are one lass than the square of a certain number

Question 15

NA

Accepted Answer

9 - 2 = 7 . → 72 = 49 13 - 2 = 11 → 112 = 121 10 - 2 = 8 → 82 = 64 ≠ 61 7 - 2 = 5 → 52 = 25

Question 16

NA

Accepted Answer

∵ 272 = 2 + 7 + 2 = 11 210 = 2 + 1 + 0 = 3 240 = 2 + 4 + 0 = 6 304 = 3 + 0 + 4 = 7 The sum of digit of all number except 240 is a prime number where as sum of number 240 digit is a non-prime. Hence, it is different from all others.

Question 17

NA

Accepted Answer

Each of the numbers except 380, is either one less or one more than the square of a certain number.

Question 18

Find the odd one out:

Accepted Answer

Except 22 all are in the from 112 x 1, 112 x 2, 112 x 3 etc.

Question 19

Find the odd one out:

Accepted Answer

Only 119 has different factors, 7 and 17 and no factors are repeated.

Question 20

Find the odd one out:

Accepted Answer

Except 56 all can be expressed as power of 2.

Classification Questions