Anonymous
Anonymous asked in 教育及參考書小學及中學教育 · 1 decade ago

F.1 Maths

1)Mandy measures that a pack of A4 paper (with 500 pieces inside) is 48 mm thick, and the relative error is 1/240. Find the range of thickness of each piece of paper.

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  • 1 decade ago
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    Thickness of each paper based on the measured value

    = 48 / 500

    = 0.096 mm

    Maximum absolute error

    = Measured value X relative error

    = 0.096 X 1 / 240

    = 0.0004

    Therefore, upper limit of the thickness of a piece of paper

    = 0.096 + 0.0004

    = 0.0964 mm

    Lower limit of the thickness of a piece of paper

    = 0.096 - 0.0004

    = 0.0956 mm

    So, the range of thickness of each piece of paper is 0.0956 mm ~ 0.0964 mm.

    Source(s): Myself~~~
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