Multiple choice

Complete the series given below by finding the missing term. $5, 14, 27, 44, 65, ?$

  1. $88$
  2. $90$
  3. $109$
  4. $130$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Differences between terms: 14-5=9, 27-14=13, 44-27=17, 65-44=21. The differences increase by 4. Next difference = 21+4=25. 65+25=90.

AI explanation

The differences between consecutive terms of the series are successive odd numbers. We subtract 5 from 14 to get 9, subtract 14 from 27 to get 13, subtract 27 from 44 to get 17, and subtract 44 from 65 to get 21. Continuing this pattern of increasing the difference by 4, the next difference is 25, so we add 25 to 65 to arrive at 90.

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