Thread: Gay Lussac's Law, problem.

"20ml each of oxygen and hydrogen and 10ml of carbon monoxide are exploded in an enclosure. What will be the volume and the composition of the mixture of gases when they are cooled to room temperature?"The question is based on Lussac's law about molecules reacting in whole number ratios. I can't get a start on the question.Can someone solve it step by step for me?Would be really helpful