A tank with a square base of 40 cm was
14 filled with water After another 80640 cm
3 of water was poured into the tank, it became
56 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 80640 cm
3 of water was poured into the tank
=
56 -
14=
1012 -
312=
712712 of the tank = 80640
112 of the tank = 80640 ÷ 7 = 11520
1212 of the tank = 12 x 11520 = 138240
138240 mℓ = 138.24 ℓ
Capacity of the tank = 138.24 ℓ
(b)
1012 of the tank = 10 x 11520 = 115200
Final height of the water in the tank
=
11520040 x 40 = 72 cm
Answer(s): (a) 138.24 ℓ; (b) 72 cm