A container measuring 23 cm by 18 cm by 51 cm was
13 filled with water at first. Carl poured some water into the container. In the end, the height of the water level in the container was 25 cm as shown.
- How much water did Carl pour into container? Give your answer in mℓ.
- Carl then poured all the water in the container into several identical flasks. Given that each flask can hold at least 1.6 ℓ of water, what is the least number of flasks he would need?
(a)
Height of water in the container at first
=
13 x 51
= 17 cm
Increase in the height of water in the container
= 25 - 17
= 8 cm
Volume of water poured into the container
= 23 x 18 x 8
= 3312 mℓ
(b)
Volume of the water after some water was poured in
= 23 x 18 x 25
= 10350 cm
3
1.6 ℓ = 1600 mℓ
Number of flasks
= 10350 ÷ 1600
= 6 r 750
Least number of flasks that he would need
= 6 + 1
= 7
Answer(s): (a) 3312 mℓ; (b) 7