Which question is a statistical question? What is the height of the tallest mountain?
What is the favorite flower of each student?
How many children does my math teacher have?
How many miles is the longest hiking trail?

What is the favorite flower of each student

Let x= the number of hours he wrote. Hence the expression 8 1/5x. Let that equal the total accomplishments in an hour. So, 8 1/5x= 32 4/5. Now I like to work with improper fractions... 8 1/5=41/5 and 32 4/5=164/5. So. 41/5x=164/5 and x=164/5*5/41. The 5's cancel and 164/41=4, So x=4. Probably could do away with the last part if examined better or using a calculator.