there are two containers the first contains 500 ml of alcohol while the second contains 500 ml of water 5 cups of alcohol from the first container is taken out and is mixed well in the second container then 5 cups of this mixture is taken out from the second container put back into the first container let X and y did not the proportion of alcohol in the first and the proportion of water in the second container then what is the relationship between X and y is zoom the size of cup to be identical.