The time it takes to clean up after an anniversary party

Last updated: 7/13/2022

The time it takes to clean up after an anniversary party varies inversely as the number of people cleaning. If 3 people work together to clean, it will take them 90 minutes. How long will it take if the number of people cleaning is increased to 5? A 54 minutes B. 72 minutes C.150 minutes D. 162 minutes