set this up as a proportion
36/6 = x/8
solve for x
6=1/8x
divide by 1/8
x=48
Another way to look at this is to find out how many papers each teacher grades per hour. If 6 teachers grade 36 papers
each teacher grades 36 papers divided by 6 teachers or 6 papers
6 papers per teacher times 8 teachers instead of 6 gives us the same answer. 48 papers for 8 teachers.