A container measuring 30 cm by 25 cm by 48 cm was
14 filled with water at first. Albert poured some water into the container. In the end, the height of the water level in the container was 15 cm as shown.
- How much water did Albert pour into container? Give your answer in mℓ.
- Albert then poured all the water in the container into several identical flasks. Given that each flask can hold at least 1.3 ℓ of water, what is the least number of flasks he would need?
(a)
Height of water in the container at first
=
14 x 48
= 12 cm
Increase in the height of water in the container
= 15 - 12
= 3 cm
Volume of water poured into the container
= 30 x 25 x 3
= 2250 mℓ
(b)
Volume of the water after some water was poured in
= 30 x 25 x 15
= 11250 cm
3
1.3 ℓ = 1300 mℓ
Number of flasks
= 11250 ÷ 1300
= 8 r 850
Least number of flasks that he would need
= 8 + 1
= 9
Answer(s): (a) 2250 mℓ; (b) 9