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      Question

      The second number in the given number pairs is obtained

      by performing certain mathematical operation(s) on the first number. The same operation(s) is/are followed in all the number-pairs except one. Find that odd number-pair.
      A 32 : 1014 Correct Answer Incorrect Answer
      B 18 : 354 Correct Answer Incorrect Answer
      C 24 : 566 Correct Answer Incorrect Answer
      D 49 : 2391 Correct Answer Incorrect Answer

      Solution

      The logic followed here is: 2nd number = 1st number² - 10 In option 'A', '32 : 1014' → 32² - 10 = 1024 - 10 = 1014 In option 'B', '18 : 354' → 18² - 10 = 324 - 10 = 314 ≠ 354 In option 'C', '24 : 566' → 24² - 10 = 576 - 10 = 566 In option 'D', '49 : 2391'→ 49² - 10 = 2401 - 10 = 2391

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