James can plant 3 seedlings in 20 minutes . Lito can do the same job in 30 minutes. if they will work together , how long can they plant 20 seedlings?
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James can plant 3 seedlings in 20 minutes . Lito can do the same job in 30 minutes. if they will work together , how long can they plant 20 seedlings?
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Answer:
almost 2 hours
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