The figure shows a tank ³₄ filled with water. The tank is made up of two cuboids. The top cuboid has a square base of length 20 cm and height of 32 cm. The bottom cuboid has a square base of length 8 cm and height 20 cm. Find the height of the water level from the base of the tank.
Volume of the top cuboid
= 20 x 20 x 32
= 12800 cm³ 

Volume of the bottom cuboid
= 8 x 8 x 20
= 1280 cm³ 

Total volume
= 12800 + 1280
= 14080 cm³ 

1 tank = 14080 cm^3 
3₄ tank = 14080 x ³₄ = 10560 cm³ 

Volume of water in the top cuboid
= 10560 - 1280
= 9280 cm³ 

Base Area of the top cuboid
= 20 x 20
= 400 cm² 

Height of water in the top cuboid
= 9280 ÷ 400
= 23.2 cm

Height of water from base
= 23.2 + 20
= 43.2 cm

Answer(s): 43.2 cm