A shop selling sewing machines offers 3% discount on all cash purchases. What cash amount does a customer pay for a sewing machine the price of which is marked as Rs. 650.

Rekha bought a saree for Rs 1240 and sold it for Rs 1147. Find her loss and loss percent.

What will be the compound interest on Rs. 4000 in two years when rate of interest is 5% per annum?

Shikha’s income is 60% more than that of Shalu. What percent is Shalu’s income less than Shikha’s?

A shopkeeper allows 20% off on the marked price of goods and still gets a profit of 25%. What is the actual cost to him of an article marked Rs. 500?