11 Perry can mop a warehouse in 10 9 hours Ming can mop the

Last updated: 8/31/2023

11 Perry can mop a warehouse in 10 9 hours Ming can mop the same warehouse in 8 3 hours How long would it take them if they worked together A 5 1 hours C 5 18 hours B 3 98 hours D 4 71 hours