Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Answer & explanation
Correct answer: option 3
The logic followed here is:
4 : 70 = 43 + 6 = 70
7 : 349 = 73 + 6 = 349
3 : 30 = 33 + 6 = 33 ≠ 30 (odd)
8 : 512 = 83 + 6 = 512