Question

Terry haas completed 15 homework problems, and susan has completed 9. Terry is completing 10 problems per hour, ans susan is completing 12 per hour. after how many hours will terry and susan have completed the same number of problems?

Answer 1

After 3 hours.
working;
after 3 hours, Terry will have completed 15 hours + 10*3 hours=45 tasks
                       Susan will have completed 9+ 12*3hours= 45 tasks