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30-03-2020
Mathematics

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One housekeeper can clean a hotel room twice as fast as another one. Working together they can clean a room in 8 minutes. How long does it take for each housekeeper to clean a room?

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30-03-2020

X can clean house in X mins
Y can clean house in Y mins
X + 2Y = 8
X = 4, Y = 2
Any possible solution for X + 2Y = 8

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