Tank J is a cubical tank of side 18 cm. It is
79 filled with water. The water is then poured into Tank K measuring 20 cm by 17 cm by 15 cm.
- Find the volume of water in Tank J at first.
- How much more water is needed to fill Tank K to the brim? Give your answer in litres.
(a)
Volume of water in Tank J
=
79 x 18 x 18 x 18
= 4536 cm
3 (b)
Volume of Tank K
= 20 x 17 x 15
= 5100 cm
3 Volume of water needed to fill Tank K to the brim
= 5100 - 4536
= 564 cm
3 564 mℓ = 0.564 ℓ
Answer(s): (a) 4536 cm
3; (b) 0.564 ℓ