If a bicycle was bought for Rs 650 and sold for Rs 585, then the percentage of profit is 10.

By selling a book for Rs 50, a shopkeeper suffers a loss of 10%. The cost price of the book is Rs 60.

If a chair is bought for Rs 2000 and is sold at a gain of 10%, then selling price of the chair is Rs 2010.

Sushma sold her watch for Rs 3320 at a gain of Rs 320. For earning a gain of 10% she should have sold the watch for Rs 3300.

Interest on Rs 1200 for years at the rate of 15% per annum is Rs 180.