Question:
The line graph shows the amount of water used by a family from March to June. The water used is charged at the rate of 85¢ per m³.
(a) What was the average amount paid per month for the water used from March to June?
(b) The average amount of water used from May to July is 400 m³. Find the amount of water used in July.
Solution:
![P6 / ACS (Junior) / 2021 / SA2 Prelims / Paper 1 – Q08 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/05/P6_SA2_2021_ACS_Junior_Paper1_Q08-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / CHIJ / 2019 / SA1 / Paper 2 – Q14 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/03/P6_CHIJ_2019_SA1_Paper2_Q14-Qns.jpg?resize=400%2C260&ssl=1)