In how many ways can 8 persons be seated on a bench if only three
FURTHER MATHEMATICS
WAEC 2021
In how many ways can 8 persons be seated on a bench if only three seats are available?
- A. 100
- B. 125
- C. 336
- D. 427
Correct Answer: C. 336
Explanation
\(^3{P}_3\) = \(\frac{8!}{8-3}!\)
= \(\frac{(8 * 7 * 6 * 5)!}{5!}\)
= 336
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