Verbal test #12 for paf navy army nts | Many selection centre
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Classification Problems: Verbal Reasoning Classification Questions and Answers
1. Choose the number which is different from others in the group?
A. 17
B. 27
C. 29
D. 37
E. 59
Ans: B.
Sol.
Each of the numbers except 27, is a prime number.
2. Choose the number which is different from others in the group?
A. 120
B. 168
C. 290
D. 380
E. 728
Ans: D.
Sol.
Each of the numbers except 380, is either one less or one more than the square of a certain number.
3. Choose the number which is different from others in the group?
A. 21
B. 39
C. 51
D. 63
E. 83
Ans: E.
Sol.
83 is the only prime number in the group.
4. Choose the number which is different from others in the group?
A. 29
B. 53
C. 85
D. 125
E. 147
Ans: D.
Sol.
125 is the only number in the group which is a perfect cube.
5. Choose the number which is different from others in the group?
A. 13
B. 17
C. 23
D. 37 E. 73
Ans: C.
Sol.
Each of the given numbers is a prime number. But the number obtained on reversing the digits of each of the numbers except 23, is also a prime number.
6. Choose the number which is different from others in the group?
A. 27
B. 64
C. 125
D. 144
E. 162
Ans: D.
Sol.
Each of the numbers except 144, is a perfect cube.
7. Choose the number pair/group which is different from others?
A. 15 : 46
B. 12 : 37
C. 9 : 28
D. 8 : 33
Ans: D.
Sol.
In all other pairs, 2nd number = (1st number × 3) + 1.
8. Choose the number pair/group which is different from others?
A. 3 – 5
B. 5 – 3
C. 6 – 2
D. 7 – 3
Ans: D.
Sol.
In all other pairs, the sum of two numbers is 8.