A tank with a square base of 30 cm was
13 filled with water After another 21000 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 21000 cm
3 of water was poured into the tank
=
34 -
13=
912 -
412=
512512 of the tank = 21000
112 of the tank = 21000 ÷ 5 = 4200
1212 of the tank = 12 x 4200 = 50400
50400 mℓ = 50.4 ℓ
Capacity of the tank = 50.4 ℓ
(b)
912 of the tank = 9 x 4200 = 37800
Final height of the water in the tank
=
3780030 x 30 = 42 cm
Answer(s): (a) 50.4 ℓ; (b) 42 cm