Mathematics, 12.07.2019 18:00 frostylui
One crew can seal a parking lot in 10 hours and another in 14 hours. how long will it take to seal the parking lot if the two crews work together?
Answers: 1
per hour.Another crew can do this work in 14 hours.This means that they will do 
per hour.Both crews together will do 
per hour.
per hour, then for all work they will spend 
hours or 5 hours 50 minutes.
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One crew can seal a parking lot in 10 hours and another in 14 hours. how long will it take to seal t...
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