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
Correct Answer: C. 56
Explanation
= \(^{8}C_{3} = \frac{8!}{(8 - 3)! 3!}\)
= \(\frac{8 \times 7 \times 6}{3 \times 2}\)
= 56 ways
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