Instructions

In the following question, select the missing number from the given series.

Question 18

1, 4, 15, 64, ?

Solution

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The pattern followed is :

1 $$\times2+2$$ = 4

4 $$\times3+3$$ = 15

15 $$\times4+4$$ = 64

64 $$\times5+5$$ = 325

=> Ans - (C)

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