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One crew can seal a parking lot in 5 hours and another in 10 hours. How long will it take to seal the parking lot if the two crews work together?
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One crew can seal a parking lot in 5 hours and another in 10 hours. How long will it take to seal the parking lot if the two crews work together?

User Arasio
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4 votes
5 hours and 50 minutes
User Khartnett
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