Comprehension What will come in place of the question mark in the given series, choose from the alternatives. 2, 7, 28, 63, 126, … ?

Question

2, 7, 28, 63, 126, … ?
1. 215
2. 245
3. 276
4. 296

Answer 1

Correct Answer - Option 1 : 215

The pattern followed:

The pattern are (alternate cube +1) and (alternate cube - 1)

1³ + 1 = 2

2³ - 1 = 7

3³ + 1 = 28

4³ - 1 = 63

5³ + 1 = 126

6³ - 1 = 215

Hence, the correct answer is "215".