The cost price of 8 books is equal to the selling price of 6 books.Find the gain per cent.

The cost price of 36 books is equal to the selling price of 30 books .The gain is:

If the cost price of 8 pens is equal to the selling price of 6 pens, find the gain per cent.

If the cost price of 12 books is equal to the selling price of 8 books. What is the gain per cent? (A) 12% (B) 30% (C ) 40% (D) 50%

the cost price of 100 books is equal to the selling price of 60 books. The gain or loss percentage will be :

If the cost price of 15 books is equal to the selling price of 20 books, the loss percent is

The cost price of 20 pens is equal to the selling price of 15 pens. The gain per cent is

If the cost price of 5 bananas be equal to the selling price of 3 bananas, then gain per cent is

If the cost price of 16 tables be equal to the selling price of 12 tables, the gain per cent is