Hope your question is:
Tea set was bought for rupees 528 after getting a discount of 12% on its marked price .find the Marked price of the tea set
Solution :
Let the marked price of tea set be Rs = X
Therefore ,
Marked Price - Discount on Marked Price = 528
X - 12/100 *X = 528
100 X - 12 X / 100 = 528
88X = 528*100
X = 52800 / 88
X = 600
Hence Marked Price of the Tea Set is RS 600 .