35 of a container is filled with water. Another 90 litres of water are needed to fill the container to its brim.
- What is the volume of the container in mℓ?
- The height of the container is 30 cm and its breadth is 50 cm. Find the perimeter of its base.
(a)
Fraction of the container not filled with water = 1 -
35 =
25 25 of the tank = 90 ℓ
15 of the tank = 90 ÷ 2 = 45 ℓ
55 of the tank = 45 x 5 = 225 ℓ
225 ℓ = 225000 mℓ
(b)
Length of the container
= 225000 ÷ (30 x 50)
= 150 cm
Perimeter of the base
= (150 + 50) x 2
= 400 cm
Answer(s): (a) 225000 mℓ; (b) 400 cm