1.

What will come in place of question mark (?) in the following number series?10, 11, 15, 24, ?, 651. 422. 453. 484. 355. 40

Answer» Correct Answer - Option 5 : 40

Given:

The number series:

10, 11, 15, 24, ?, 65

Concept Used:

Number series following a fixed pattern.

Calculation;

The given number series follows the pattern:

10+ 12 = 11

11 + 22 = 15

15 + 32 = 24

24 + 42 = 40

40 + 52 = 65

The number in place of “?” in the given number series is 40



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