An article is sold at a profit of 20% of its cost price. If cost price and selling price reduces by Rs 10 and Rs. 5 respectively, then the percentage profit increased to 30%. Find the cost price?

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

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: 

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

A person has 12 bananas for Rs 24. Sell in So he got the benefit of 25 percent. How many bananas he buy in Rs. 40?

A phone is sold for Rs. 860 at a loss of 20% for how much should it be sold gain 10%?