Series and Odd Man out Practice Test 4

Question : 14 of 40

Marks: +1, -0

2, 9, 28, 65, 126, 216, 344

Solution:

If 216 is replaced by 217, then terms of the series will get arranged in the order of

1 × (1)^2 + 1, 2× (2)^2 + 1, 3 × (3)^2 + 1

4 × (4)^2 + 1

..... etc. Therefore, alternative (b) is the correct answer.

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