Mathematics, 16.02.2021 05:40 jennywarmJones
Mia and Holly can clean their room in 20 min, working together. Mia, working alone, can do the job in 30 min. How many minutes will it take Holly to
clean their room, working alone?
A 30
B. 60
C. 50
D. 80
Answers: 1
denotes time taken by Mia alone to clean the room and 
denotes time taken by Holly alone to clean the room.
   
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Mia and Holly can clean their room in 20 min, working together. Mia, working alone, can do the job i...
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