Question
Find the wrong number in the given number series.
3, 4, 10, 33, 136, 680Solution
3 X 1 + 1 = 4 4 X 2 + 2 = 10 10 X 3 + 3 = 33 33 X 4 + 4 = 136 136 X 5 + 5 = 685 Therefore, 685 should come in place of 680
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