35 of a container is filled with water. Another 80 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 40 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 = 80 ℓ
15 of the tank = 80 ÷ 2 = 40 ℓ
55 of the tank = 40 x 5 = 200 ℓ
200 ℓ = 200000 mℓ
(b)
Length of the container
= 200000 ÷ (40 x 50)
= 100 cm
Perimeter of the base
= (100 + 50) x 2
= 300 cm
Answer(s): (a) 200000 mℓ; (b) 300 cm