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andreev551 [17]
3 years ago
12

If Jim Roller can paint a room in 3 hours while John Brush would take 4 hours, how long will they take if they work together? 1/

7 hour 1 hour 1 5/7 hours
Mathematics
1 answer:
Harman [31]3 years ago
4 0
The answer is 1 5/7 hours. 
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