Question:
At 8 a.m., a swimming pool was completely filled with water. From 8 a.m. to 1 p.m., water was drained from the swimming pool. The line graph below shows the volume of water in the swimming pool from 8 a.m. to 1 p.m.
During which one-hour period was the decrease in the volume of water the greatest?
Solution:
![P6 / Methodist Girls / 2021 / SA2 / Paper 1 – Q06 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/06/P6_SA2_2021_Methodist_Girls_Paper1_Q06-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / CHIJ / 2019 / SA2 / Paper 2 – Q10 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/06/P6_CHIJ_2019_Prelims_Paper2_Q10-Qns.jpg?resize=400%2C260&ssl=1)