SSC CGL 8 september, 2016 Shift 2 Question 9(Reasoning) with Solution.

Find the missing term in the following series:
0, 1, 4, 15, ?, 325, 1956
Options:
1. 60
2. 64
3. 75
4. 80
Answer: 64

0 x 1 + 1 = 1
1 x 2 + 2 = 4
4 x 3 + 3 = 15
15 x 4 + 4 = 64
64 x 5 + 5 = 325 (to verify)