Question 40

In the following question, a series is given with one or more number (s) missing. Choose the correct alternative from the given options.
7, 51, 8, 65, 9, ?

Solution

The pattern followed is :

$$(7)^2+2=51$$

$$(8)^2+1=65$$

$$(9)^2+0=81$$

=> Ans - (C)

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