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A sales girl gave a change of N1.15 to a customer instead of N1.25. Calculate...

Mathematics
WAEC 1988
A sales girl gave a change of N1.15 to a customer instead of N1.25. Calculate her percentage error
  • A. 10%
  • B. 7%
  • C. 8.0%
  • D. 2.4%
  • E. 10%
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
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Correct Answer: Option C
Explanation
Error = 1.25 - 1.15 = 0.10

0.10/1.25
* 100 = 8.0%
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NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
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NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Join your school's WhatsApp group
Join your school's WhatsApp group
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789