Cost Price And Selling Price|Equivalent Ratio|Question Practice|Simple Interest|OMR

Cost Price And Selling Price|Profit Or Loss As A Percentage|Question Practice|OMR

Introduction|Ratio|Question Practice|Equivalent Ratio|Proportion|OMR

Profit Or Loss (Recap)|Simple Interest|Question Practice|OMR

Simple Interest|Compound Interest|Question Practice|OMR

If the ratio of the cost price and selling price of an article is 20 : 21, then what will be the profit percentage?