Question
Follow that rule to choose the set in options which has
been followed in the set (6, 18, 54).Solution
The logic followed here is: 1st number × 3 = 2nd number, 2nd number × 3 = 3rd number. (6, 18, 54) → 6 x 3 = 18, 18 x 3 = 54. (15, 45, 135) → 15 x 3 = 45, 45 x 3 = 135. (20, 30, 40) → 20 x 3 = 60, 60 x 3 = 180. (12, 24, 72) → 12 x 3 = 36, 36 x 3 = 108
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