A container measuring 30 cm by 23 cm by 54 cm was
13 filled with water at first. Michael poured some water into the container. In the end, the height of the water level in the container was 24 cm as shown.
- How much water did Michael pour into container? Give your answer in mℓ.
- Michael then poured all the water in the container into several identical flasks. Given that each flask can hold at least 1.4 ℓ of water, what is the least number of flasks he would need?
(a)
Height of water in the container at first
=
13 x 54
= 18 cm
Increase in the height of water in the container
= 24 - 18
= 6 cm
Volume of water poured into the container
= 30 x 23 x 6
= 4140 mℓ
(b)
Volume of the water after some water was poured in
= 30 x 23 x 24
= 16560 cm
3
1.4 ℓ = 1400 mℓ
Number of flasks
= 16560 ÷ 1400
= 11 r 1160
Least number of flasks that he would need
= 11 + 1
= 12
Answer(s): (a) 4140 mℓ; (b) 12