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OpenStudy (anonymous):
Lydia can paint a room in 8 hours and Sunil can paint it in 7 hours. How long will it take the two working together to paint the room? Round to the nearest tenth. Answer 5.0 hours 7.5 hours 3.7 hours 2.3 hours
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OpenStudy (anonymous):
@mayankdevnani
OpenStudy (anonymous):
3.7
OpenStudy (anonymous):
its 1/(1/7+1/8)
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