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Examveda

What will come at the place of question mark ?
9, 17, 33, 65, ?

A. 117

B. 119

C. 129

D. 99

Answer: Option C

Solution(By Examveda Team)

First term → 9

Second term → (9 *2 -1) = 17

Third term → (17 *2 -1) = 33

Fourth term → (33 *2 -1) = 65

Fifth term → (65 *2 -1) = 129
 

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Comments ( 2 )

  1. Mansi Mishra
    Mansi Mishra :
    3 years ago

    9:17::8:?

  2. Sasmita Singh
    Sasmita Singh :
    5 years ago

    It is also
    2×2×2=8+1
    2×2×2×2=16+1
    2×2×2×2×2=32+1
    2×2×2×2×2×2=64+1
    2×2×2×2×2×2×2=128+1

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