shopkeeper marked a dinner set for ₹1000. He sold it at ₹900, what percent discount did he give ?
Marked Price of a dinner set = ₹1000
And selling price (S.P.) = ₹900
∴ Amount of discount = Rs. 1000 – Rs. 900 = Rs100
∴ Discount percent = (Discount × 100)/M.P.
= (100 × 100)/100
= 10%