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John can mow his lawn in 3 hours and his sister, Julie, can mow it in 2 hours. How long will it take them to mow their lawn if they work together?
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4 votes
John can mow his lawn in 3 hours and his sister, Julie, can mow it in 2 hours. How long will it take them to mow their lawn if they work together?

User Liubenyuan
by
8.8k points

1 Answer

6 votes

Answer:

2h30m

Explanation:

Assuming they each do half, Julie would take 1 hour and John would take 1 hour 30 minutes, and combined would therefore be 2h30m.

User Jianpx
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8.7k points
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