The true discount on a bill of Rs. 430 due 3 years hence is Rs. 30, at what rate is the simple interest reckoned?
On a certain sum of money, the banker's discount and true discount at the rate of 6% are Rs. 66 and Rs. 60 respectively. find the sum.
Ram purchased a bicycle for Rs. 150 and sold it for Rs. 220 on a loan for one year. If the rate of interest is 10%, what will be the profit per cent?
The market price of laptop was Rs. 9400. Mr. Ayan bought the same for Rs. 8460. What was the discount rate?