Question

Timmy estimated he would spend $9 at the candy store. He went a little over-budget and spent $12. What was the percent error?

Answer 1

Answer :

• Error (e) = 12 - 9 = $ 3

• assumed value (a) = $ 9

$\boxed{ \mathrm{ \% \: error = \dfrac{error}{assumed \: value} \times 100}}$

• $\mathrm{ \% \: error =\dfrac{3}{9} ×100}$

• $\mathrm{ \% \: error = \dfrac{1}{3} ×100}$

• $\mathrm{ \% \: error = 33.33 \%}$

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