Question

A boy measures the lenghth of a straight line as 6.2cm when it actually is 6.6cm find the %error in his measurement

Answer 1

⚫ANSWER⚫

$correct \: measurement = 6.6\\ wrong \: measurement \\ = (6.6 - 6.2)\\ = 0.4 \\ error \: percentage \: \\ = \frac{0.4}{6.6} \times 100 \\ = \frac{4}{66} \times 100 \\ = \frac{200}{33} \\ = 6 \times \frac{2}{33} \%$