A container measuring 26 cm by 23 cm by 45 cm was
13 filled with water at first. Vaidev poured some water into the container. In the end, the height of the water level in the container was 20 cm as shown.
- How much water did Vaidev pour into container? Give your answer in mℓ.
- Vaidev then poured all the water in the container into several identical jugs. Given that each jug can hold at least 1.6 ℓ of water, what is the least number of jugs he would need?
(a)
Height of water in the container at first
=
13 x 45
= 15 cm
Increase in the height of water in the container
= 20 - 15
= 5 cm
Volume of water poured into the container
= 26 x 23 x 5
= 2990 mℓ
(b)
Volume of the water after some water was poured in
= 26 x 23 x 20
= 11960 cm
3
1.6 ℓ = 1600 mℓ
Number of jugs
= 11960 ÷ 1600
= 7 r 760
Least number of jugs that he would need
= 7 + 1
= 8
Answer(s): (a) 2990 mℓ; (b) 8