A container measuring 30 cm by 26 cm by 48 cm was
13 filled with water at first. Cole poured some water into the container. In the end, the height of the water level in the container was 21 cm as shown.
- How much water did Cole pour into container? Give your answer in mℓ.
- Cole then poured all the water in the container into several identical bottles. Given that each bottle can hold at least 1.2 ℓ of water, what is the least number of bottles he would need?
(a)
Height of water in the container at first
=
13 x 48
= 16 cm
Increase in the height of water in the container
= 21 - 16
= 5 cm
Volume of water poured into the container
= 30 x 26 x 5
= 3900 mℓ
(b)
Volume of the water after some water was poured in
= 30 x 26 x 21
= 16380 cm
3
1.2 ℓ = 1200 mℓ
Number of bottles
= 16380 ÷ 1200
= 13 r 780
Least number of bottles that he would need
= 13 + 1
= 14
Answer(s): (a) 3900 mℓ; (b) 14