Question:
The table below shows the charges for water usage by PRB company.
(a) Mdm Salimah’s family used 40 m³ of water in August. How much was her family charged for their water usage?
(b) Mr Muthu spent $103.12 on water usage in September. What was the volume of water Mr Muthu used in that month?
![](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/09/P6_Henry_Park_2020_SA2_Paper2_Q07-Qns.jpg?resize=640%2C284&ssl=1)
Solution:
![](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/09/P6_Henry_Park_2020_SA2_Paper2_Q07-Sol.jpg?resize=640%2C593&ssl=1)