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Mrs. Kofi sold an article for C7.50 instead of C12.75. Calculate her percentage of error,...

Mathematics
WAEC 1991
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%
  • E. 1.4%
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Correct Answer: Option A
Explanation
Error =12.75 - 7.50 = 5.25

Error % = \(\frac{5.25}{12.75}\) x 100% = 41.2%
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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WAEC offline past questions - with all answers and explanations in one app - Download for free
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WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now