A container measuring 22 cm by 15 cm by 50 cm was
15 filled with water at first. Tim poured some water into the container. In the end, the height of the water level in the container was 18 cm as shown.
- How much water did Tim pour into container? Give your answer in mℓ.
- Tim 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
=
15 x 50
= 10 cm
Increase in the height of water in the container
= 18 - 10
= 8 cm
Volume of water poured into the container
= 22 x 15 x 8
= 2640 mℓ
(b)
Volume of the water after some water was poured in
= 22 x 15 x 18
= 5940 cm
3
1.3 ℓ = 1300 mℓ
Number of flasks
= 5940 ÷ 1300
= 4 r 740
Least number of flasks that he would need
= 4 + 1
= 5
Answer(s): (a) 2640 mℓ; (b) 5