A container measuring 26 cm by 23 cm by 44 cm was
14 filled with water at first. John 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 John pour into container? Give your answer in mℓ.
- John then poured all the water in the container into several identical flasks. Given that each flask can hold at least 1.5 ℓ of water, what is the least number of flasks 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
= 15 - 11
= 4 cm
Volume of water poured into the container
= 26 x 23 x 4
= 2392 mℓ
(b)
Volume of the water after some water was poured in
= 26 x 23 x 15
= 8970 cm
3
1.5 ℓ = 1500 mℓ
Number of flasks
= 8970 ÷ 1500
= 5 r 1470
Least number of flasks that he would need
= 5 + 1
= 6
Answer(s): (a) 2392 mℓ; (b) 6