Classification Questions for RRB Online Test - 1

Question: 1

In each of the following questions, four numbers are given out of which three are alike in same manner while one is different. Choose the one which is different from the rest three.

(A) 27

(B) 125

(C) 729

(D) 1321

Ans: D

All other numbers are cubes of odd numbers.

Question: 2

In each of the following questions, four numbers are given out of which three are alike in same manner while one is different. Choose the one which is different from the rest three.

(A) 51

(B) 64

(C) 121

(D) 144

Ans: A

Each of the number except 51, is a perfect square.

Question: 3

In each of the following questions, four numbers are given out of which three are alike in same manner while one is different. Choose the one which is different from the rest three.

(A) 5698

(B) 6958

(C) 8793

(D) 9865

Ans: C

Sum of digits in each other number is 28.

Question: 4

In each of the following questions, four numbers are given out of which three are alike in same manner while one is different. Choose the one which is different from the rest three.

(A) 9

(B) 10

(C) 11

(D) 16

Ans: C

11 is the only prime number in the group.

Question: 5

In each of the following questions, four numbers are given out of which three are alike in same manner while one is different. Choose the one which is different from the rest three.

(A) 120

(B) 140

(C) 240

(D) 360

Ans: B

Each of the numbers except 140, is a multiple of 120.

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