The height of a boy was 144 cm. By mistake, it was measured as 144.3 mm. Find the error percent.
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formula for percentage error.
[( I Approximate Value - Exact Value I ) / Exact Value] x 100 [note the two bars in the eqation are the bars of Absolute Value Symbol I I
Approximate value =144.3 mm =14.43cm
Exact value= 144 cm
[(I 14.43cm-144 cm I ) /144 cm ] x 100
[(I -129.57 cm I ) /144 cm ] x 100
[( 129.59 cm ) /144 cm ] x 100
[0.899 cm ] x 100
[0.90 cm ] x 100
90% ANS
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