A tank with a square base of 10 cm was
14 filled with water After another 3990 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 3990 cm
3 of water was poured into the tank
=
56 -
14=
1012 -
312=
712712 of the tank = 3990
112 of the tank = 3990 ÷ 7 = 570
1212 of the tank = 12 x 570 = 6840
6840 mℓ = 6.84 ℓ
Capacity of the tank = 6.84 ℓ
(b)
1012 of the tank = 10 x 570 = 5700
Final height of the water in the tank
=
570010 x 10 = 57 cm
Answer(s): (a) 6.84 ℓ; (b) 57 cm