By selling an article for Rs. 100 , one gains Rs. 10. Then , the gain percent is :

The selling price of 12 articles is equal to the cost price of 15 articles. The gain percent is:

A trader lists his articles 20% above C.P. and allows a discount of 10% on cash payment. His gain percent is:

By selling a table for Rs. 30 instead of Rs. 40, 5% more is lost. The cost of the table is :

A man buys 10 articles for Rs.8 and sells them at the rate of Rs.1.25 per article. His gain percent is:

Subhash purchased a tape recorder at 9/10th of its selling price and sold it at 8% more than its selling price. His gain is:

The C.P. of an article which is sold at a loss of 25% for Rs. 150, is:

By selling an article for Rs. 100, one loses Rs. 10. Then , the loss percent is:

A fruit seller buys lemons at 2 for a rupee and sells them at 5 for three rupees. His gain per cent is:

Toffees are bought at the rate of 8 for a rupee. To gain 60%, they must be sold at: