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maths

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At the local fire station they have different lengths of fire hose. the shortest is half the length of the middle-sized one, and one fifth of the length of the longest one. if i connect the three different hose lengths together i make a hose 120m long. how long is the shortest hose? how long is the middle hose? how long is the longest hose? please show workings. thanks

  • maths - ,

    Let x = length of smallest hose

    x + 2x + 5x = 120

    Solve for x.

  • maths - ,

    what the guy just wrote is crap

  • maths - ,

    15,30,75

  • maths - ,

    think of it this way
    trial and error
    x+ 2x + 5x = 120.
    think of numbers that could add up this amount.
    like 15, 30, 75.
    easy.

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