Four number-pairs are given out of which three are alike in a certain way and one is different. Select the number-pair that is different from the rest.
Answer & explanation
Correct answer: option 3
The logic followed here is:
second number × 2 : (second number) 2
16 : 64
8 × 2 : (8) 2
16 : 64
34 : 289
17 × 2 : (17) 2
34 : 289
24 : 142
12 × 2 : (12) 2
24 : 144 but 142 (odd)
14 : 49
7 × 2 : (7) 2
14 : 49