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20 July, 04:48

Tina can paint a room 1.5 times faster than Joey can. If they work together, they can paint a room in 6 hours. How long would it take the slower person working alone to paint the room?

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  1. 20 July, 05:54
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    So, the rate is 1 job / hours, so:

    1/n + 1/1.5n = 1/6

    We'll make the denominator 3n:

    3/3n + 2/3n = 1/6

    5/3n = 1/6

    Cross multiply:

    3n = 30

    n = 10

    It will take the slower person 10 hours to complete the room.
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