Question

If customer A has an appointment 2 2/3 hours before customer B who has an appointment 5/6 of an hour before customer C. How much later is customer C‘s appointment than customer A’s?

Answer 1

Customer A: 2 hours and 40 minutes
Customer B : 50 minutes

2 hours + 40 minutes + 50 minutes = 2 hours and 90 minutes

= 3 hours and 30 minutes

Answer 2

or you can say 3 hours and (30 minutes)(1hour/60 minutes = 3 1/2 hours