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Series Completion Interview Questions and Answers

Question -
4, 9, 25, ?, 121, 169, 289, 361

A. 49
B. 64
C. 81
D. 87


Answer -

Option A

Explanation:

The given series consists of squares of consecutive prime numbers

i.e. 22, 32, 52,.....,

112, 132, 172, 192.

So, missing term = 72 = 49.

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