Question

Rs.X amounts becomes Rs. 4096 in 4 years and Rs.6561 in 8 years, when invested 'R%' per annum compound
interest compounded annually. Find the amount received when Rs.7200 is invested at '2R%' p.a compounded
interest , compounded annually for 1 year.
A. Rs.8400
B. Rs.8600
C. Rs.8800
D. Rs.9000
E. None of these​

Answer 1

Answer:

9000

Step-by-step explanation:

R = 12.5 %

2R = 25%

so using formula 9000