What should come in place of the question mark ‘?’ in the following number series?
60, 40, 50, ?, 180, 460
Correct Answer :
85
Solution :
The correct option is 85.
To find the missing number in the given series, let us analyze the mathematical pattern between consecutive terms:
1st term = 60
2nd term:
3rd term:
4th term (missing value '?'):
5th term:
6th term:
Thus, the pattern follows multiplying by 0.5, 1.0, 1.5, 2.0, 2.5... and adding 10 at each step. Therefore, the missing number replacing '?' is 85.
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