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      Question

      Four number-pairs are given, out of which three are

      alike in certain manner and one is different. Choose the different number-pair.
      A 186: 150 Correct Answer Incorrect Answer
      B 234: 218 Correct Answer Incorrect Answer
      C 442: 436 Correct Answer Incorrect Answer
      D 368: 304 Correct Answer Incorrect Answer

      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 → [186 – (6²)] = [186 – 36] = 150 b.) 234: 218 → [234 – (4²)] = [234 – 16] = 218 d.) 368: 304 → [368 – (8²)] = [368 – 64] = 304 All combination of number follows this pattern except for: c.) 442: 436 → [442 – (2²)] = [442 – 4] = 438

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