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Multiple choice

Choose the correct alternative from the given ones that will complete the series:- 9,10,14,23,39,?

  1. 44

  2. 49

  3. 54

  4. 64

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The differences between consecutive terms are: 10-9=1, 14-10=4, 23-14=9, 39-23=16. These are 1², 2², 3², 4². The next difference should be 5²=25. So, 39+25=64.

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