The marked price of a watch is ₹1600. The shopkeeper gives two discounts to the customer, the first being 10%. If the customer pays ₹ 1224 for the watch, the second discount is :
5%
After the first discount of 10% on ₹1600,
Discount =10% of ₹ 1600
=10100×1600=₹ 160
Price of watch after 1st discount = ₹1600 - ₹160 = ₹1440
As the customer pays ₹1224 after the second discount, the second discount amounts to:
₹1440 - ₹1224 = ₹216
So the second discount percent is,
2161440×100=15%.