The hardwood Floor Word Problem

Question

Jason and Omar are laying a hardwood floor. Working alone, Jason can do the job in 20 hours. If the two of them work together, they can complete the job in 12 hours. How long would it take Omar to lay the floor alone?

Answer 1

Jason does 12/20, or 3/5 of the job.

Omar completes 2/5 of the job in 12 hours.

Omar needs 30 (12 ÷ 2/5) hours working alone.