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Math Help - percentageA

  1. #1
    uma
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    percentageA

    A water pipe can fill a 250 litre tank in 2 hours 30 minutes.In how much time will it fill 9/ 10 of the tank ?
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  2. #2
    MHF Contributor red_dog's Avatar
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    250......................... 150 minutes

    \frac{9}{10}\cdot 250......................... x

    Can you find x?
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  3. #3
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    If a = x, then y = x/a * b

    2.5/250 * 250(9/10) = ? ; 2.5 is 2 hours 30 minutes
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