35 of a tank is filled with water. Another 96 litres of water are needed to fill the tank to its brim.
- What is the volume of the tank in mℓ?
- The height of the tank is 32 cm and its breadth is 60 cm. Find the perimeter of its base.
(a)
Fraction of the tank not filled with water = 1 -
35 =
25 25 of the tank = 96 ℓ
15 of the tank = 96 ÷ 2 = 48 ℓ
55 of the tank = 48 x 5 = 240 ℓ
240 ℓ = 240000 mℓ
(b)
Length of the tank
= 240000 ÷ (32 x 60)
= 125 cm
Perimeter of the base
= (125 + 60) x 2
= 370 cm
Answer(s): (a) 240000 mℓ; (b) 370 cm