Test Index

IBPS Clerk Mains 29 Nov 2025 Paper

Question Numbers: 127-128

Calculate value of A and B, Answer the following Question?

Series 3, 4, 9, 28, 113, A, B

Question : 128 of 155

Marks: +1, -0

Find the value of B.

Solution:

Concept:

The series follows a pattern where each term is obtained by multiplying the previous term by an increasing integer and then adding

1

Explanation:

Let the series be

3, 4, 9, 28, 113, A, B

The multipliers increase as

1, 2, 3, 4, 5, 6

3 \times 1 + 1 = 4

4 \times 2 + 1 = 9

9 \times 3 + 1 = 28

28 \times 4 + 1 = 113

A = 113 \times 5 + 1 = 566

B = 566 \times 6 + 1 = 3397

Answer:

B = 3397

Correct option: C.

3397

Go to Question:

Prev Question

Next Question