An open concrete tank is internally 1m wide 2m long and 1.5m deep the concrete being 10cm thick. Calculate the capacity of the tank in litres and the volume of concrete used in m3

1 answer

To calculate the capacity of the tank in liters, we first need to calculate the volume of the tank.

Volume of the tank = length x width x depth
Volume of the tank = 2m x 1m x 1.5m = 3m^3

Next, we need to convert the volume from cubic meters to liters since 1 cubic meter is equal to 1000 liters.

Capacity of the tank = 3m^3 x 1000 = 3000 liters

To calculate the volume of concrete used in the tank, we need to consider the tank with the concrete walls.

Volume of concrete = (length + 2 x thickness) x (width + 2 x thickness) x depth - volume of the tank
Volume of concrete = (2m + 2 x 0.1m) x (1m + 2 x 0.1m) x 1.5m - 3m^3
Volume of concrete = (2.2m) x (1.2m) x 1.5m - 3m^3
Volume of concrete = 3.168m^3 - 3m^3
Volume of concrete = 0.168m^3

Therefore, the capacity of the tank is 3000 liters and the volume of concrete used is 0.168m^3.