Instructions

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

Question 18

2, 7, 22, 67, ?

Solution

Numbers of the form $$(5\times3^n)$$ are added, where $$n$$ is whole number.

2 $$+(5\times3^0)$$ = 7

7 $$+(5\times3^1)$$ = 22

22 $$+(5\times3^2)$$ = 67

67 $$+(5\times3^3)$$ = 202

=> Ans - (D)

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