Question 25

Which number will come next in the following series?
1, 2, 5, ...., 677

Solution

Pattern being followed here is $$n^2 + 1$$

Like $$1, 1^2 + 1, 2^2 + 1, 5^2 + 1.......

Hence 1, 2, 5, 26.......

(Same explanation more detailed required)

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