3 out of 5 students surveyed said they walk to school. The difference between the total number of students who walk to school and who do not walk to school is 8. How many students were surveyed?

Answer 1

W-D=8

D=W-8

3/5 = W/(W+D)

3/5 = W/(W+W-8) = W/(2W-8)

5W = 3(2W-8) = 6W -24

6W-5W = 24

W = 24 students walk to school

D = 24-8 = 16 who don't walk to school