If you mean carbs, then you don't eat as much pasta and bread and stuff like that. So practically, all of the good stuff. Use techniques. Tell yourself that it will make you thinner if you don't eat it. I also tell myself that I am stronger than this and that food shouldn't control me. It might or might not work for you.
Hope I could help!
I believe the answer is 20
If two different elements combine separately with a fixed mass of a third element, the ratio of the masses in which they do so are either the same as or a simple multiple of the ratio of the masses in which they combine with each other.
