Direction: A shopkeeper has some kg. rice of same price. He sold 150 kg. rice at 25 Rs. per kg. and earned a profit of 25%, another 180 kg. rice is sold at a profit of 20% and rest are sold at a loss of 10%. If the shopkeeper earns Rs. 1230 profit on all the rice that he has sold then answers the following question:

What is the total quantity of rice that the shopkeeper has? 

If apples are bought at the rate of 30 for a rupee. How many apples must be sold for a rupee to gain 20%?   

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: 

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

A shopkeeper bought 80 pens in Rs. 400. He sold 40 pens at 60% profit and sold the remaining pens at 20% profit. If he had sold all the pens at a 15% profit, how much less profit would he have made?

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?

If the cost price of 28 items is equal to the selling price of 21 items, what is the profit percentage?

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