What will come in place of the question mark in the following number series 163 150 134 112 81 ........

Quantitative Aptitude(IBPS CL) Number series

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

163, 150, 134, 112, 81, ?

This questions was previously asked in

IBPS Clerk (Prelims)

To determine the missing number in the series, we need to identify the pattern:

- From 163 to 150: The difference is 13.

- From 150 to 134: The difference is 16.

- From 134 to 112: The difference is 22.

- From 112 to 81: The difference is 31.

The sequence of differences is increasing incrementally: 13, 16 (+3), 22 (+6), 31 (+9).

Following this pattern, the next difference should be 31 + 12 = 43.

- From 81 onward: Subtract 43 from 81, which gives 38.

Therefore, the missing number is 38.

Correct Answer: Option 3 - 38

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