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Find the missing term: 6, 13, 25, 51, 101. ?

A. 201

B. 202

C. 203

D. 205

Answer: Option C

Solution(By Examveda Team)

The pattern is x2+1,x2-1,x2+1,x2-1.x...................
So, missing term =101x2+1=203

This Question Belongs to Competitive Reasoning >> Number Series Completion

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Comments ( 1 )

  1. Helping Hands
    Helping Hands :
    3 years ago

    This can also be done through another way
    There are two series
    One of 6,25,101
    Another is 13,51,?
    6×4+1=25, 25×4+1=101
    13×4-1=51,51×4-1=203

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