SOLUTION: Dave,Joe,and Sabrina were assigned the job of cataloging the music for their school band.Dave could have completed the assignment in 2 hours alone,Joe in 3 hours, and Sabrina in 4
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Question 904803: Dave,Joe,and Sabrina were assigned the job of cataloging the music for their school band.Dave could have completed the assignment in 2 hours alone,Joe in 3 hours, and Sabrina in 4 hours.They started work together, but Joe left at the end of a half-hour and Sabrina at the end of an hour. How long did Dave work alone to finish the cataloging?
