Question

What will come in place of the question mark (?) in the following series?

16      17       25        ?        99     180

A 50 Correct Answer Incorrect Answer
B 65 Correct Answer Incorrect Answer
C 55 Correct Answer Incorrect Answer
D 40 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

16 + 12 = 17 16 + 32 = 25 25 + 52 =  50 50 + 72 = 99 99 + 92 = 180

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