A container measuring 23 cm by 15 cm by 44 cm was
14 filled with water at first. Jack 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 Jack pour into container? Give your answer in mℓ.
- Jack then poured all the water in the container into several identical flasks. Given that each flask can hold at least 1.2 ℓ of water, what is the least number of flasks he would need?
(a)
Height of water in the container at first
=
14 x 44
= 11 cm
Increase in the height of water in the container
= 16 - 11
= 5 cm
Volume of water poured into the container
= 23 x 15 x 5
= 1725 mℓ
(b)
Volume of the water after some water was poured in
= 23 x 15 x 16
= 5520 cm
3
1.2 ℓ = 1200 mℓ
Number of flasks
= 5520 ÷ 1200
= 4 r 720
Least number of flasks that he would need
= 4 + 1
= 5
Answer(s): (a) 1725 mℓ; (b) 5