Question 10
Brian takes a day off from work every 4th day and David takes a day off on every 5th day. If they have a day off today and their next day off falls on a Monday, what day is today?
**Editorial note:** Interpret “their next day off” as their next shared day off after today. Today is day 0; Brian’s future days off are 4, 8, 12, … and David’s are 5, 10, 15, … days later. Choose one option.
**Editorial note:** Interpret “their next day off” as their next shared day off after today. Today is day 0; Brian’s future days off are 4, 8, 12, … and David’s are 5, 10, 15, … days later. Choose one option.