have only 35 minute please solve quick and don't solve it with Excel

In order to raise money for a fund, we decided to produce and sell tables and chairs in the workshop of our campus. Our workshop can actually do this. However, as expected we have some limitations. We can spare only one of the workers for this job and that makes only 40 hours available working hours per week. A table with the given specifications can be produced in four hours while a chair only takes three hours. After a feasibility study we made sure that profit of a table will 300TL and profit of a chair will be 100TL. Demand for tables are at least three times the demand for chairs. With limited stock keeping opportunities on hand, we are informed that tables produced takes four times as much storage space as chairs and there is room for at most four tables each week. Formulate the problem and solve the LP graphically