Surya sells 45 pens and suffers a loss equal to the selling price of five pens. What is his total loss percentage?

The cost price of 40 oranges is equal to the selling price of 30 oranges. Find the percentage profit.

On selling 30 chairs, a furniture seller gets a loss equal to selling price of 6 chairs. His loss percent is

On selling 17 balls at Rs. 720, there is a loss equal to the cost price of 5 balls. The cost price of a ball is:

A cloth merchant on selling 33 metre of cloth obtains a profit equal to the selling price of 11 metre of cloth. The profit percentage is :

10% loss on selling price is what percent loss on cost price?