The rule generally goes simple – Greater the concentration, better the results. This rule is applicable to any task. The power of concentration can be seen even in small things. For instance, playing a game requires concentration. One can play a game without concentration, but he will lose a lot. It is the same for studying and giving exams. Having strong concentration abilities will automatically push a student above those with lesser concentration. Basically, your brain is a powerhouse. Succeeding in exams require exploiting your powerhouse as much as you can. Every student has the same brain. Those who can concentrate the brain better will take the top..