An oil refinery buys oil at Rs 3600 per barrel. There is 10 % wastage. If the refinery wants to earn 5% profit then at what price should it sell including 8 % tax on selling price? (in Rs per barrel) 

A shopkeeper increases the price of an object by 40 % and then sells it at 25 % discount on the marked price. If the selling price of such an object be ₹ 2100, its cost price for the shopkeeper was? 

A bookseller allowed 10 % discount on printed price. He gets 30 % commission from publisher. His profit in percent will be 

A used car dealer sells a car for Rs 7.6 lakhs and makes some loss. If he had sold if for Rs.9.2 lakhs his profit would been thrice of his loss. What was the cost price of the car (in Rs. Lakhs)? 

A number increased by   $$22{1 \over 2}\%$$ gives 98 as result. The number is: 

A man had a certain amount with him. He spent 20% of that to buy an article and 5% of the remaining on transport. Then he gifted ₹ 120. If he is left with ₹ 1,400, the amount he spent on transport is: 

Find the greatest number which will exactly divide 200 and 320. 

A milk in vendor has 21 liters of cow milk, 42 liters of toned milk and 63 liters of double toned milk. If he wanted to pack them in cans so that each can contains same liters of milk and does not want to mix any two kinds of milk in a can, then the least number of cans required is :