2. A furniture dealer deals in only two items, tables and chairs. He has 500 R.0. to invest and a space to store at most 60 pieces. A table costs him 25 R.O. and a chair 5 R.O. He can sell a table at a profit of 50 R.O. and a chair at a profit of 1.5 R.O. Assuming, he can sell all the items that he buys, how should he invest his money in order that he may maximize his profit?