Question

1, 5, 13, 29, 61, ...

• A. 90
• B. 103
• C. 109
• D. 125

Hint:

When solving series problems, try identifying any arithmetic patterns (multiplication or addition) between terms.

Answer 1

The Correct Option is B

The pattern in the series is increasing by multiplying the previous term by 2 and adding 1:
1 * 2 + 3 = 5
5 * 2 + 3 = 13
13 * 2 + 3 = 29
29 * 2 + 3 = 61
61 * 2 + 3 = 103.

Thus, the next number in the series is "103".