Linear Optmization problem in Excel using Solver:

A company manufactures desks and chairs (in whole numbers). Each desk uses 4 units of wood, and each chair uses 3 units of wood. A desk contributes $40 to profit, and a chair contributes $25. Marketing restrictions require that the number of chairs produced be at least the same as the number of desks produced. There are 20 units of wood available. Determine how to maximize the company's profit.