integer optimal solution

Student Enterprises sells two sizes of wall posters, a large 3- by 4-foot poster and a smaller 2- by 3-
foot poster. The profit earned from the sale of each large poster is $3; each smaller poster earns $2.
The firm, although profitable, is not large; it consists of one art student, Ahmed, at the University of
Punjab. Because of her classroom schedule, Ahmed has the following weekly constraints: (1) up to
three large posters can be sold, (2) up to five smaller posters can be sold, (3) up to 10 hours can be
spent on posters during the week, with each large poster requiring 2 hours of work and each small
one taking 1 hour. With the semester almost over, Ahmed plans on taking a three-month summer
vacation to Lahore and doesn’t want to leave any unfinished posters behind. Find the integer optimal
solution that will maximize her profit