Question:
A rectangular tank was partly filled with water. A tap was turned on for half an hour to fill the tank completely. The line graph below shows the the volume of water in the tank at regular intervals of time. What was the rate of the flow of water from the tap, in litres per minute?
Solution:
![P6 / ACS / 2018 / SA2 / Paper 2 – Q12 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2019/07/P6_ACS_2018_Prelims_Paper2_Q12-e1561992459944.jpg?resize=400%2C260&ssl=1)
![P6 / Henry Park / 2019 / SA1 / Paper 2 – Q03 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/04/P6_HenryPark_2019_SA1_Paper2_Q03-Qns.jpg?resize=400%2C260&ssl=1)