A grocer bought sugar worth of $₹4500$. He sold one-third of it at a gain of $10\%$. At what gain percent must the remaining sugar be sold to have a gain of $12\%$ on the whole?

The marked price of a water cooler is$₹4650$. The shopkeeper offers an off-season discount of  $18\%$ on it. Find its selling price.

The price of a sweater was slashed from $₹960$  to $₹816$  by a shopkeeper in winter season. Find the rate of discount given by him.

Find the rate of discount being given on a shirt whose selling price is $₹1092$ after deducting a discount of $₹208$ on its marked price. Hint. $M.P. = S.P. + discount$

After allowing a discount of  $8\%$ on a toy, it is sold for $₹216.20$ . Find the marked price of the toy.

A tea set was bought for Rs.528 after getting a discount of 12% on its marked price. Find the marked price of the tea set.

A dealer marks his goods at $35\%$ above the cost price and allows a discount of  $20\%$ on the marked price. Find his gain or loss per cent.

A cellphone was marked at 40% above the cost price and a discount of 30% was given on its marked price. Find the gain or loss per cent made by the shopkeeper.

A dealer purchased a fan for Rs. 1080. After allowing a discount of 25% on its marked price, he gains 25%. Find the marked price of the fan.