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In a computer repair shop the ratio of the number of CPUs

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GMIHIR Just gettin' started! Default Avatar
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In a computer repair shop the ratio of the number of CPUs Post Sat May 19, 2012 9:08 am
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    In a computer repair shop the ratio of the number of CPUs to the number of motherboards to the number of keyboards to the number of mouse pads is 2:3:5:7.What is the difference in the total number of keyboards and mother boards?
    (1) The number of keyboards lies between 6 to 14.
    (2) The difference between the total number of mouse pads and CPUs is 10.

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    GmatKiss GMAT Titan Default Avatar
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    Post Sat May 19, 2012 10:26 am
    In a computer repair shop the ratio of the number of CPUs to the number of motherboards to the number of keyboards to the number of mouse pads is 2:3:5:7.What is the difference in the total number of keyboards and mother boards?

    (1) The number of keyboards lies between 6 to 14.

    So Keyboard should be 10; and mouse pad is 14
    Sufficient

    (2) The difference between the total number of mouse pads and CPUs is 10.

    Mother board is 30,CPU is 20, so as the difference is 10
    Keyboard and Mouse pad will be 50 and 70
    Sufficient

    IMO: D

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