38 of a tank is filled with water. Another 110 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 40 cm and its breadth is 50 cm. Find the perimeter of its base.
(a)
Fraction of the tank not filled with water = 1 -
38 =
58 58 of the tank = 110 ℓ
18 of the tank = 110 ÷ 5 = 22 ℓ
88 of the tank = 22 x 8 = 176 ℓ
176 ℓ = 176000 mℓ
(b)
Length of the tank
= 176000 ÷ (40 x 50)
= 88 cm
Perimeter of the base
= (88 + 50) x 2
= 276 cm
Answer(s): (a) 176000 mℓ; (b) 276 cm