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What will come in the place of question mark (?) in the following number series ?

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What will come in the place of question mark (?) in the following number series ?


4, 19, 49, ?, 229
1). 75
2). 109
3). 65
4). 169


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2 answers

1 vote
Answered by on | Votes 1 |
Solution

The pattern is

4 + $15 \times 2^0$ = 19

19 + $15 \times 2^1$ = 49

49 + $15 \times 2^2$ = 109

109 + $15 \times 2^3$ = 229

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2 vote
Answered by on | Votes 2 |
Solution

The pattern is

4 + $15 \times 2^0$ = 19

19 + $15 \times 2^1$ = 49

49 + $15 \times 2^2$ = 109

109 + $15 \times 2^3$ = 229




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