CA Foundation · Quantitative Aptitude · Number Series, Coding-Decoding and Odd Man Out
Find the missing term in the series: 7, 10, 16, 28, ?, 100.
The missing term is 52. The differences between consecutive terms are 3, 6, 12, 24, 48, doubling each time. So 28+24=52, and 52+48=100, which agrees with the last term in the series.
- A52Correct
- B56
- C60
- D64
Explanation
Differences are 3, 6, 12, doubling each time, so the next difference is 24 and the term is 28+24=52. Then the next difference 48 gives 52+48=100, matching the last term. 56 would need a difference of 28, which breaks the pattern.
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