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Numeric Classification

Q1. Find out, which is not similar .

(a) 99

(b) 242

(c) 132

(d) 160

Solution.
All are divisible by 11, except 160.
Solution

Q2. Find out, which is not similar.

(a) 51

(b) 29

(c) 37

(d) 13

All are prime number except 51.
Solution

Q3. Find out, which is not similar.

(a) 1

(b) 8

(c) 27

(d) 63

Solution.
All are cube except 63.
Solution

Q4. Find out, which is not similar.

(a) 108

(b) 288

(c) 81

(d) 82

Solution.
All are multiple of 9 except 82.
Solution

Q5. Find out, which is not similar.

(a) 81-18

(b) 63-36

(c) 45-55

(d) 72-27

Solution.
In all digits are reversed, except 45-55.
Solution