16 5 = 80, that's how many litres when it's full 80/2 = 40, that's how many litres when it's half full It will hold * 40 litres**
You have to do 16 x 5 ( denominator ) which is 80. 80 is when it is full. SO... you have to half that giving you 40. The answer is 40
The barrel will hold 40 liters when it is half full. This is calculated by first finding the total capacity of the barrel, which is 80 liters. We then take half of that amount to find the volume when half full.
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