By selling 66 metres cloth, a man loses S.P. of 11 metres. What is the loss percent?

By selling an article for Rs. 700 a man lost 30 %. At what price should he have sold it to gain 30%? 

The cost price of an article is ₹390. If it is to be sold at a profit of 3.12 %, how much would be its approximate selling price?

A scooter was purchased for Rs 30,000 and Rs 3,000 was spent to repair it. It was sold for Rs 39,600. What was the profit percentage?

A trader sells two items at the rate of Rs 400 each. If he gains 15% on one and losses 15% on other, then what is the value (in Rs) of loss?

A person bought pens at 25 for a rupee and sold at 15 for a rupee. What is his profit percentage? 

A store sells a watch for a profit of 25% of the cost. Then the percentage of profit against selling price is-

Arun bought an old computer and spent ₹110 on its repairs. He then sold it to Bhola at a profit of 20%. Bhola sold it to Chandan at a loss of 10%. Chandan finally sold it for ₹1,188 at a profit of 10%. How much did Arun buy the computer for?