Question:
The figure below shows an empty wading pool with some steps at one side of the pool. Each step measures 0.2 m in height and 0.4 m in length. Mr Hank wants to fill the pool with water using a hose that allows water to flow at a rate of 1.395 m³ per hour.
How long will it take Mr Hank to fill the pool with water to a depth of 0.7 m measured from the deepest end of the pool?
Solution:
![P6 / Methodist Girls / 2020 / SA2 Prelims / Paper 1 – Q17 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/01/P6_Methodist_Girls_2020_SA2_Paper1_Q17-Qns.jpg?resize=400%2C172&ssl=1)
![P6 / Methodist Girls / 2019 / SA2 / Paper 2 – Q12 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/07/P6_MGS_2019_Prelims_Paper2_Q12-Qns.jpg?resize=400%2C260&ssl=1)
hi where did you get 0.1 frm in the model? thx
Hi Belinda, the 0.1m is because the height of the pool is 0.8m, and the water depth is 0.7m. Therefore, 0.8m – 0.7m = 0.1m.
Hope this clarifies!