G Giaaa New member Sep 21, 2010 #1 ...can complete the job alone in 6 d? How long will it take Romy and Roger to clean the buildings together if Romy can complete the job alone in 6 days, and Roger, alone in 10 days?
...can complete the job alone in 6 d? How long will it take Romy and Roger to clean the buildings together if Romy can complete the job alone in 6 days, and Roger, alone in 10 days?
