the list price of a watch is Rs400 a customer gets two successive discounts the first being 10% calculate in percentage the second discount if the customer pays Rs306 for it
List price of the watch = Rs 400
First discount percent = 10
Price of the watch after first discount = Rs (400 - 10% of 400) = Rs (400 - 40) = Rs 360
Selling price of the watch = Rs 306
Second discount = Price of the watch after first discount - Selling price
= Rs 360 - Rs 306
= Rs 54
Second discount percent = (Second discount ÷ Price of the watch after first discount) × 100
= (54 ÷ 360) × 100
= 15
Thus, the second discount is 15%.