35 of a tank is filled with water. Another 88 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 -
35 =
25 25 of the tank = 88 ℓ
15 of the tank = 88 ÷ 2 = 44 ℓ
55 of the tank = 44 x 5 = 220 ℓ
220 ℓ = 220000 mℓ
(b)
Length of the tank
= 220000 ÷ (40 x 50)
= 110 cm
Perimeter of the base
= (110 + 50) x 2
= 320 cm
Answer(s): (a) 220000 mℓ; (b) 320 cm