Question
What should come in place of (?) question mark in the
given number series. 5, 9, 17, 33, ?, 129Solution
Observe the pattern: 5 × 2 - 1 = 9 9 × 2 - 1 = 17 17 × 2 - 1 = 33 33 × 2 - 1 = 65 65 × 2 - 1 = 129 So the missing number is: 65
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