Instructions

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

Question 91

2, 14, 38, 86, ?, 374

Solution

Each number is multiplied by 2 and then 10 is added.

2 $$\times 2 + 10$$ = 14

14 $$\times 2 + 10$$ = 38

38 $$\times 2 + 10$$ = 86

86 $$\times 2 + 10$$ = 182

182 $$\times 2 + 10$$ = 374

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