A math class has

Question

7
girls and

5
boys in the seventh grade and

4
girls and

4
boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects are both boys?
Write your answer as a fraction in simplest form.

Answer 1

grade7: 7girls, 5 boys
grade8: 4 girls, 4boys

prob(boy from gr7 and boy from gr8)
= (5/12)(4/8) = 5/24

Answer 2

this website never gets the right answer!