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 from the rest.
Answer & explanation
Correct answer: option 2
The logic is:
(Ist number)3 = IInd number
11 : 1331 - 113 = 1331
12 : 1757 - 123 = 1728 but 1757 is given which is odd
7 : 343 - 73 = 343
3 : 27 - 33 = 27