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In the following question, select the missing number from the given series.

3, 4, 5, 4, 9, 10, 6, 16, 15, 9, 25, 20, 13, 36, ?

  • 17

  • 25

  • 28

  • 31


B.

25

(3, 4, 5), (4, 9, 10), (6, 16, 15), (9, 25, 20), (13, 36, ?)
Check the relationship between 1st, 2nd and 3rd term of each bracket.
for example;
1st term in each bracket following logic:
3+14 +26+39+413
Similarly,
3rd term of each bracket following logic:
5+510+515+520+525


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