1.
What will come in place of the question mark (?) in the following number series ?6, 11, 21, 41, ??
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By: anil on 05 May 2019 01.26 am
Each number in the given series is one less than double the previous number. For example, 11 = 2*6 - 1
21 = 2*11 - 1
41 = 2*21 - 1 So, the number to come next is 2*41 - 1 = 81
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21 = 2*11 - 1
41 = 2*21 - 1 So, the number to come next is 2*41 - 1 = 81