Instructions

In each of the following questions a number series is given. After the series a number is given followed by (a), (b) (c), (d) and (e). You have to complete the series starting with the number given, following the sequence of the original series and answer the questions that follow the series.

Question 102

3, 5, 9, 17, 33, 65
7 (a) (b) (c) (d) (e)
What will come in place of (d)?

Solution

Each number is multiplied by 2 and then 1 is subtracted from it.

3 $$\times 2 - 1$$ = 5

5 $$\times 2 - 1$$ = 9

9 $$\times 2 - 1$$ = 17

17 $$\times 2 - 1$$ = 33

33 $$\times 2 - 1$$ = 65

Similarly,

7 $$\times 2 - 1$$ = 13

13 $$\times 2 - 1$$ = 25

25 $$\times 2 - 1$$ = 49

49 $$\times 2 - 1$$ = 97

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RBI Grade B 17 NOV 2002

3, 5, 9, 17, 33, 657 (a) (b) (c) (d) (e)What will come in place of (d)?

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3, 5, 9, 17, 33, 65
7 (a) (b) (c) (d) (e)
What will come in place of (d)?