A tank with a square base of 30 cm was
25 filled with water After another 7980 cm
3 of water was poured into the tank, it became
34 full.
- Find the capacity of the tank in litres.
- Find the final height of the water in the tank.
(a)
Fraction of the tank when 7980 cm
3 of water was poured into the tank
=
34 -
25=
1520 -
820=
720720 of the tank = 7980
120 of the tank = 7980 ÷ 7 = 1140
2020 of the tank = 20 x 1140 = 22800
22800 mℓ = 22.8 ℓ
Capacity of the tank = 22.8 ℓ
(b)
1520 of the tank = 15 x 1140 = 17100
Final height of the water in the tank
=
1710030 x 30 = 19 cm
Answer(s): (a) 22.8 ℓ; (b) 19 cm