In how many ways can four Mathematicians be selected from six ?
FURTHER MATHEMATICS
WAEC 2023
In how many ways can four Mathematicians be selected from six ?
- A. 90
- B. 60
- C. 15
- D. 360
Correct Answer: C. 15
Explanation
\(=^6C_4\)
\(=\frac{6!}{(4!\times2!)}\)
\(=\frac{6\times5}{2\times1}\)
= 15
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