Question
A rectangular tank is filled with water to a height of 7 cm. Its rectangular base measures 40 cm by 10 cm. When 8 litres of water are poured into the tank, the water level rises to 35 of the height of the tank. Find the height of the tank.
3 m

Click button first when a symbol is required. X

A rectangular tank is filled with water to a height of 7 cm. Its rectangular base measures 40 cm by 10 cm. When 8 litres of water are poured into the tank, the water level rises to 35 of the height of the tank. Find the height of the tank.