By selling a T-shirt

Let the cost price of T shirt be 100 X. 

Loss percentage is 4% .

Loss in Rs,

⇒ 4% OF COST PRICE

⇒ 4% OF 100 X.


⇒ 4 X  

We know,

SELLING PRICE = COST PRICE - LOSS

⇒ 100 X  - 4 X  

⇒ 96 X  

Selling price is 216;

⇒ 216  = 96 X 



⇒ X = 2.25 Rs

TO FIND COST PRICE = 100 X

⇒ 100 × 2.25

⇒ 225 RS