I wanabe a very rich man i am in class12 science what cource i will do to become a rich man tel me.

Continue with the same bent of mind and you will be fabulously rich, whatever be your subject. It is the mind that rules, not some subject. You can squeeze oil out of sand, if you have the inclination.

The feel of being Rich comes either through materialistic things or through your own mental approach in your own mind. Richness is relative. You can be sufficiently rich but yet poorer than many. So the measure of richness is important only till you are self sufficient and do not have to aks anyone