## Problem Solving

 3.7 Problem Solving

 EXAMPLE 1: Puan Mei wants to buy 3 washing machines and 2 refrigerators for her new restaurant. A washing machine cost RM 615.90 while a refrigerator cost RM 253.75. Puan Mei paid using 104 pieces of RM 50 notes. Calculate the balance that Puan Mei got. SOLUTION: Cost of washing machine = RM 615.90 Cost of refrigerator = RM 253.75 Cost of 3 washing machine = RM 615.90 x 3 = RM 1 847.70 Cost of 2 refrigerator = RM 253.75 x 2 = RM 507.50 Total cost : RM 1 847.70 + RM 507.50 = RM 2 355.20 Amount paid by Puan Mei: RM 50 × 104 = RM 5 200.00 Balance for Puan Mei: RM 5 200.00 - RM 2 355.20 = RM 2 844.80

 EXMAPLE 2: A Proton car costs RM 42 500. Azmi, Farid. Kumar and Desmond want to share their money together to purchase the car. How much does each of them have to pay fairly in order to purchase the car? SOLUTION: Cost of the car: RM 42 500 Divide the cost of the car among 4 people. RM 42 500 ÷ 4 = RM 10 625

## Problem Solving

 3.7 Problem Solving

 EXAMPLE 1: Puan Mei wants to buy 3 washing machines and 2 refrigerators for her new restaurant. A washing machine cost RM 615.90 while a refrigerator cost RM 253.75. Puan Mei paid using 104 pieces of RM 50 notes. Calculate the balance that Puan Mei got. SOLUTION: Cost of washing machine = RM 615.90 Cost of refrigerator = RM 253.75 Cost of 3 washing machine = RM 615.90 x 3 = RM 1 847.70 Cost of 2 refrigerator = RM 253.75 x 2 = RM 507.50 Total cost : RM 1 847.70 + RM 507.50 = RM 2 355.20 Amount paid by Puan Mei: RM 50 × 104 = RM 5 200.00 Balance for Puan Mei: RM 5 200.00 - RM 2 355.20 = RM 2 844.80

 EXMAPLE 2: A Proton car costs RM 42 500. Azmi, Farid. Kumar and Desmond want to share their money together to purchase the car. How much does each of them have to pay fairly in order to purchase the car? SOLUTION: Cost of the car: RM 42 500 Divide the cost of the car among 4 people. RM 42 500 ÷ 4 = RM 10 625