10. How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?
A. 4.5 Years
B. 5 Years
C. 3.5 Years
D. 4 Years
10. How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?
A. 4.5 Years
B. 5 Years
C. 3.5 Years
D. 4 Years