Tom's team takes 2 hours to build the machine, while Sara's

Last updated: 7/16/2022

Tom's team takes 2 hours to build the machine, while Sara's team takes 3 hours to build the same machine. If they work together at the same rates, how long will it take them to finish the same machine? a) 20 minutes b) 30 minutes c) 50 minutes d) 5 hours e) Answer is not here