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

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


20, 38, 74, 146, 290, ?
1). 576
2). 578
3). 580
4). 574


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2 answers

2 vote
Answered by on | Votes 2 |
Solution

The pattern here followed is :

20 * 2 - 2 = 38

38 * 2 - 2 = 74

74 * 2 - 2 = 146

146 * 2 - 2 = 290

290 * 2 - 2 = 578

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1 vote
Answered by on | Votes 1 |
Solution

The pattern here followed is :

20 * 2 - 2 = 38

38 * 2 - 2 = 74

74 * 2 - 2 = 146

146 * 2 - 2 = 290

290 * 2 - 2 = 578




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