Question

in one eighth of an hour ,ms.wolf can grade one third of a stack of papers how many hours will it take her to grade 2 stacks 

Answer 1

so 1/3 stack in 1/8 hour
2 stacks needed
2=6/3
1/3 in 1/8 hour
6/3 needed
6 times 1/3=6/3
6 times 6/8=3/4 hour
the answer is 3/4 hour or 45 mins