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if martha can rake the yard in 4 hours and her brother can rake the yard in 8 hours, how long does it take them to do it together?
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if martha can rake the yard in 4 hours and her brother can rake the yard in 8 hours, how long does it take them to do it together?

User Peevesy
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1 Answer

4 votes

Answer: 12

Explanation:

4 hours plus 8 hours together is 12 hours.

User Andrew Bickerton
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