Find the missing number in the series. 18, 24, 31, 39, ?
Question and options
Find the missing number in the series.
18, 24, 31, 39, ?
- 55
- 54
- 48
- 57
Answer and explanation
Correct answer: C - 48
The differences are +6, +7 and +8, each one more than the last. The next difference is +9, giving 39 + 9 = 48. Choosing 55 or 54 adds far more than the pattern allows.
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CUSAT Three-Year LL.B.
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