Question:
Select the right number which should come in place of the question mark (?) in the series of numbers given below.
171, 162, 144, 135, __?
Select the right number which should come in place of the question mark (?) in the series of numbers given below.
171, 162, 144, 135, __?
171, 162, 144, 135, __?
Show Hint
Look for alternating differences in a number series for an easy solution.
Updated On: Apr 16, 2025
- 135
- 153
- 162
- 171
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The Correct Option is B
Solution and Explanation
The series follows a pattern of subtraction:
171 - 9 = 162,
162 - 18 = 144,
144 - 9 = 135,
Therefore, 135 - 18 = 153.
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