Question

The water in a fish tank is treated by using 5 millilitres of AquaGuard for every 10 litres of

water in the tank.
Write down the ratio of the volume of AquaGuard used to the volume of water in the tank.
Give your answer in the form 1 : n

Answer 1

I think 5:10 but I’m not sure I don’t have how many liters are in the tank