3 Unit 3 Money 2 Diagram 2 is an incomplete bill showing two types of items purchased by Puan Aminah. Quantity 4 cans 6 kg Total Item Condensed milk Sugar Unit price RM3.50 Price Diagram 2 Puan Aminah paid with a piece of RM50 note and got a balance of RM22.50. Calculate the price of a kilogram of sugar. ​