Four pairs of numbers are given, out of which three are alike in a certain way and one is different. Select the pair of numbers that is different from the rest.

Four pairs of numbers are given, out of which three are alike in a certain way and one is different. Select the pair of numbers that is different from the rest. Correct Answer 15, 30

The pattern followed is:

Option 1 → 15 × 2 = 30

Option 2 → 35 × 2 + 2 = 72

Option 3 → 9 × 2 + 2 = 20

Option 4 → 50 × 2 + 2 = 102

All follow same pattern except ‘15, 30’

Hence, ‘15, 30’ is the different pair.

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