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.Solution
The pattern followed here is as follows: (First number × 3) + 5 = Second number 14: 47 → (14 × 3) + 5 = 42 + 5 = 47 19: 62 → (19 × 3) + 5 = 57 + 5 = 62 24: 71 → (24 × 3) + 5 = 72 + 5 = 77 15: 52 → (15 × 3) + 5 = 45 + 5 = 50 (should be 50, not 52) So, 15: 52 is the odd number-pair.      Â
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