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中 發問於 科學及數學數學 · 5 月前

Can anyone help me ?

19. Cleo measures the thickness of 500 pieces of A4 paper as 48 mm and the relative error is 1/240. lf the actual thickness of each piece of paper is x mm, find the possible range of x.

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    Lv 7
    5 月前
    最愛解答

    Absolute error of the thickness of 500 pieces

         = 48mm × 1/240 = 0.2mm

    The thickness of each piece

         = (48±0,2mm) ÷ 500

         = 0.096±0.0004mm

    ∴ The possible range of x is  0.0956～0.0964 (mm).

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