A rectangular tank measuring 64 cm by 48 cm by 40 cm was filled with water to a height of 25 cm at first. After 6 completely filled identical jugs of water were poured into the tank, the new water level in the tank became 31 cm.
- Find the volume of water in each jug in cubic centimetres.
- How much more water would be needed to fill the tank completely? (Give your answer in litres.)
(a)
Difference in the height of the new and old water level
= 31 - 25
= 6 cm
Total volume of water added
= 48 x 64 x 6
= 18432 cm
3 Volume of water in each jug
= 18432 ÷ 6
= 3072 cm
3 (b)
Difference in the height of the tank and the water after 6 jugs of water were poured in
= 40 - 31
= 9 cm
Volume of water needed to fill the tank completely
= 48 x 64 x 9
= 27648 cm
3 1000 cm
3 = 1 ℓ
27648 cm
3 = 27.648 ℓ
Answer(s): (a) 3072 cm
3; (b) 27.648 ℓ