number analogy Practice Questions Answers Test with Solutions & More Shortcuts

Directions:

In these questions, there are four groups of letters, words or numbers listed as a, b, c and d. One of the groups does not belong to the same category as others. Find the odd one out.

Question : 66 [SSC CPO SI 2006]

Given set : 23, 51, 17

a) 29, 57, 14

b) 21, 51, 17

c) 24, 53, 17

d) 29, 57, 13

Answer: (d)

2+3 = 5, 5+1 = 6, 1+7 = 8

6 – 5 = 1, 8 – 6 = 2

2 + 9 =11 ⇒ 1+1 = 2

5 + 7 = 12 ⇒ 1+2 = 3

1 + 4 = 5

3 – 2 =1, 5 – 3 = 2

Question : 67 [SSC DEO 2010]

Given set is : (12, 18, 24)

a) (10, 16, 18)

b) (8, 12, 16)

c) (5, 15, 10)

d) (6, 12, 30)

Answer: (b)

6 × 2 = 12; 6 × 3 = 18;

6 × 4 = 24

Similarly,

4 × 2 = 8; 4 × 3 = 12;

4 × 4 = 16

Question : 68

130 : 154 :: 178 : ?

a) 202

b) 180

c) 206

d) 24

Answer: (a)

130 + 24 = 154

178 + 24 = 202

Question : 69

3 : 30 : : 5 : ?

a) 135

b) 130

c) 140

d) 145

Answer: (b)

(3)3 +3 = 30 (5)3 +5 = 130

Question : 70

423 : 657 :: 534 : ?

a) 768

b) 867

c) 876

d) 678

Answer: (a)

423 + 234 = 657

534 + 234 = 768

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