What is the rate of interest if Rs. 800 earns a simple interest of Rs. 72?
9%
Interest earned on Rs.800 is Rs.72
Interest earned on Rs.100 is Rs.(72 ÷ 8) = Rs.9
Question 72
If a deposit of Rs 2000 earns an interest of Rs. 500 in 3 years, how much interest would a deposit of Rs. 36000 earn in 3 years with the same rate of simple interest?