Question
Find the wrong number in the given number series.
18, 40, 60, 132, 202, 408Solution
18 × 2 + 4 = 40 40 × 1.5 + 4 = 64 64 × 2 + 4 = 132 132 × 1.5 + 4 = 202 202 × 2 + 4 = 408 So, 64 should come in place of 60.
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