A & B jointly made a profit of Rs. 1650 and they decided to share it such that 1/3 of A's profit is equal to 2/5 of B's profit. Then profit of B is 

The price of 6 pencils is Rs. 30 and that of 12 pens is Rs. 120. What is the average price of 50 pencils and 50 pens?

A man gain 15% by selling a calculator for a certain price. If he sells it at the triple price, then what will be the profit percentage?

The difference between the selling prices of a keyboard at losses 15% and 25% is Rs. 50. Then the cost price of a keyboard is :

Chandu bought a watch at 20 percent discount on mark price but sold it at mark price. Find the percentage of profit.

The cost price of 10 articles is equal to the selling price of 9 articles. Find the profit percent.

Mohan bought 25 books for Rs. 2,000 and sold them at a profit equal to the selling price of 5 books. The selling price of 1 book is: