Exams › SSC CGL (Prelims) › Reasoning
Select the number that can replace the question mark in the following series: 7, 10, 16, 28, 52, ?
- 98
- 76
- 80
- 100
Correct answer: 100
Solution
The differences between consecutive terms are 3, 6, 12, and 24, which double each time. The next difference should be 48, so $52 + 48 = 100$.
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