Question
Four number-pairs are given, out of which three are
alike in certain manner and one is different. Choose the different number-pair.Solution
The pattern followed here is: The square of 3rd digit of 1st number is subtracted from the 1st number to obtain the 2nd number. a.) 186: 150 β [186 β (6Β²)] = [186 β 36] = 150 b.) 234: 218 β [234 β (4Β²)] = [234 β 16] = 218 d.) 368: 304 β [368 β (8Β²)] = [368 β 64] = 304 All combination of number follows this pattern except for: c.) 442: 436 β [442 β (2Β²)] = [442 β 4] = 438
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