Mrs Kofi sold an article for C7 50 instead of C... - WAEC Mathematics 1991 Question
Mrs. Kofi sold an article for C7.50 instead of C12.75. Calculate her percentage of error, correct to one decimal place.
A
41.2%
B
18.3%
C
5.3%
D
1.7%
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Correct Option: A
Error =12.75 - 7.50 = 5.25
Error % = (\frac{5.25}{12.75}) x 100% = 41.2%
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