A container measuring 25 cm by 22 cm by 54 cm was
13 filled with water at first. Perry poured some water into the container. In the end, the height of the water level in the container was 26 cm as shown.
- How much water did Perry pour into container? Give your answer in mℓ.
- Perry then poured all the water in the container into several identical jugs. Given that each jug can hold at least 1.2 ℓ of water, what is the least number of jugs 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
= 26 - 18
= 8 cm
Volume of water poured into the container
= 25 x 22 x 8
= 4400 mℓ
(b)
Volume of the water after some water was poured in
= 25 x 22 x 26
= 14300 cm
3
1.2 ℓ = 1200 mℓ
Number of jugs
= 14300 ÷ 1200
= 11 r 1100
Least number of jugs that he would need
= 11 + 1
= 12
Answer(s): (a) 4400 mℓ; (b) 12