Math question

Question

Six workers can sort 1,221 laundry items in one and a half hours. What is the average number of laundry items that an inmate can sort in five minutes?

Answer 1

1221 items / 1.5 hours            divide

814 items / hour                     divide by 6 (workers)

135 2/3 items / hour               divide by 12 (five minutes = 1/12 hour)

11.305 items / inmate / five minutes