Find out the wrong term from the given series | vedclass

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Question

(B) The pattern of the series is that each term is obtained by multiplying the previous term by $2$ and adding $1$ $(x_{n+1} = 2x_n + 1)$.Let's check

Vedclass · Accepted Answer

$39$

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(B) The pattern of the series is that each term is obtained by multiplying the previous term by $2$ and adding $1$ $(x_{n+1} = 2x_n + 1)$.Let's check the terms:$3 	imes 2 + 1 = 7$$7 	imes 2 + 1 = 15$$15 	imes 2 + 1 = 31$ (not $39$)$31 	imes 2 + 1 = 63$$63 	imes 2 + 1 = 127$$127 	imes 2 + 1 = 255$$255 	imes 2 + 1 = 511$Therefore,$39$ is the wrong term in the series and should be replaced by $31$.

Find out the wrong term from the given series:
$3, 7, 15, 39, 63, 127, 255, 511$

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Find out the wrong term from the given series:$3, 7, 15, 39, 63, 127, 255, 511$

Similar Questions

Find the missing term for the given series from the given alternatives:$QPO, SRQ, UTS, WVU, (?)$

These questions are based on the following set of numbers.$738, 495, 329, 653, 849$If $1$ is added to the first digit of each number and $1$ is subtracted from the second digit,which number will be the largest?

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