A container measuring 20 cm by 16 cm by 44 cm was
14 filled with water at first. Lee poured some water into the container. In the end, the height of the water level in the container was 19 cm as shown.
- How much water did Lee pour into container? Give your answer in mℓ.
- Lee then poured all the water in the container into several identical jugs. Given that each jug can hold at least 1.1 ℓ of water, what is the least number of jugs 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
= 19 - 11
= 8 cm
Volume of water poured into the container
= 20 x 16 x 8
= 2560 mℓ
(b)
Volume of the water after some water was poured in
= 20 x 16 x 19
= 6080 cm
3
1.1 ℓ = 1100 mℓ
Number of jugs
= 6080 ÷ 1100
= 5 r 580
Least number of jugs that he would need
= 5 + 1
= 6
Answer(s): (a) 2560 mℓ; (b) 6