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Mathematics, 31.08.2019 14:30 serafimharmane4944

1) lance can paint the room in 5 hours, while kim can paint the same room in 4 hours.
how many hours would it take for them to paint the room together?
2) dominique can ice cupcakes twice as fast as houston. when they work together, dominique and houston can ice a large order of cupcakes in 5 hours.
how many hours would it take houston to ice them by himself?

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