Find the amount on Rs.8000 in 9 months at 20% per annum, if the interest being compounded quarterly?

Find the amount on Rs.8000 in 9 months at 20% per annum, if the interest being compounded quarterly?

A. Rs.1261
B. Rs.9261
C. Rs.9621
D. Rs.9162
Explanation:
A = 8000(21/20)3 = 9261