A Mathematical Puzzle

Once in a marriage party people from three castes arrived namely The Brahmans , The Rajputs and The Muslims. The food arrangement at the party consisted 100 plates for 100 people . The Brahmans said that each one of them will eat 4 plates. The Rajputs said that each one of them will eat 2 plates. The Muslims then said that 4 of them can eat from 1 plate. The Number of plates and people cannot be changed then find the number of Brahmans , Rajputs and Muslims that were at the party so that all of them ate the food as per conditions.