A container measuring 26 cm by 20 cm by 51 cm was
13 filled with water at first. Liam 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 Liam pour into container? Give your answer in mℓ.
- Liam then poured all the water in the container into several identical flasks. Given that each flask can hold at least 1.4 ℓ of water, what is the least number of flasks he would need?
(a)
Height of water in the container at first
=
13 x 51
= 17 cm
Increase in the height of water in the container
= 21 - 17
= 4 cm
Volume of water poured into the container
= 26 x 20 x 4
= 2080 mℓ
(b)
Volume of the water after some water was poured in
= 26 x 20 x 21
= 10920 cm
3
1.4 ℓ = 1400 mℓ
Number of flasks
= 10920 ÷ 1400
= 7 r 1120
Least number of flasks that he would need
= 7 + 1
= 8
Answer(s): (a) 2080 mℓ; (b) 8