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Mathematics, 01.04.2021 22:10 trashmonkey620

Sandy can rake 20 bags of leaves in 4 hours. Sarah can rake 28 bags in 4 hours. If they work together, how long will it take to rake 54 bags of leaves? (A) 4 1/2 hours
(B) 4 hours
(C) 3 3/4 hours
(D) 2 hours

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