If one shirt is offered on the purchase of 4 shirts. Find the net discount.

The price of a shirt is Rs 260 but the shopkeeper successively discount 15% & 20%. The net sales price is subject to a sales tax of 5%. What does the buyer pay ?

A shop - keeper sells a badminton racket whose marked price is ₹ 30, at a discount of 15 % and gives a shuttle cock costing ₹ 1.50 free with each racket. Even then he makes a profit of 20 %. His cost price, per racket is 

A housewife saved ₹ 2.50 in buying a dress on sale. If she spent ₹ 25 for the dress, approximately how much percent she saved in the transaction? 

A shopkeeper marked the article 30 % above the cost price. And he gives a discount of 20 % on the M.R.P. find his profit percentage?

Sanjay sold an article by giving a discount of 8 % for Rs. 17940. And make a profit of 19.6 %. If he did not give discount then how profit percentage he get? 

The MRP of a watch is Rs.4750. The shop sells it at 12% discount. If the shopkeeper had purchased the watch for Rs. 3,850, what is his gain? 

What is single discount equivalent to two successive discounts of 15% and 20%?