IBPS SO Prelims Exam Model Paper 3

GIVEN:
3, 4, 10, 33, 136, ?, 4115
Calculation:
The series follows the following pattern:
⇒ 3 × 1 + 1 = 4
⇒ 4 × 2 + 2 = 10
⇒ 10 × 3 + 3 = 33
⇒ 33 × 4 + 4 = 136
⇒ 136 × 5 + 5 = 685
⇒ 685 × 6 + 6 = 4116
∴ The required value of "?" is 685.