A container measuring 23 cm by 20 cm by 52 cm was
14 filled with water at first. Ryan poured some water into the container. In the end, the height of the water level in the container was 16 cm as shown.
- How much water did Ryan pour into container? Give your answer in mℓ.
- Ryan then poured all the water in the container into several identical flasks. Given that each flask can hold at least 1.5 ℓ of water, what is the least number of flasks he would need?
(a)
Height of water in the container at first
=
14 x 52
= 13 cm
Increase in the height of water in the container
= 16 - 13
= 3 cm
Volume of water poured into the container
= 23 x 20 x 3
= 1380 mℓ
(b)
Volume of the water after some water was poured in
= 23 x 20 x 16
= 7360 cm
3
1.5 ℓ = 1500 mℓ
Number of flasks
= 7360 ÷ 1500
= 4 r 1360
Least number of flasks that he would need
= 4 + 1
= 5
Answer(s): (a) 1380 mℓ; (b) 5