demarcuswiseman
22.01.2020 •
Mathematics
Joseph and chandra are cleaning their house which has 12 rooms, each about the same size. if joseph cleans them by himself, it takes him 6 hours. if chandra cleans them by herself, it takes her 12 hours. if they both clean the house, they will finish in 4 hours. if they work together, how many rooms will chandra clean and how many will joseph clean?
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Ответ:
the average between them is 9
12+6=18
18/2=9
Ответ:
Ответ:
susu
Step-by-step explanation:
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