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In how many ways can 3 prefects be chosen out of 8 prefects?

Further Mathematics
WAEC 2011

In how many ways can 3 prefects be chosen out of 8 prefects?

  • A. 6
  • B. 24
  • C. 56
  • D. 336
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Correct Answer: Option C
Explanation

= \(^{8}C_{3} = \frac{8!}{(8 - 3)! 3!}\)

= \(\frac{8 \times 7 \times 6}{3 \times 2}\)

= 56 ways


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Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
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
Join your school's WhatsApp group
Join your school's WhatsApp group
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
Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid