Class 11MathematicsPermutation and CombinationDefinition of permutation, Number of permutations with or without repetition, Conditional permutations
EasyEvaluate $\frac{n!}{(n-r)!}$,when $n=9, r=5$.
- A$15120$
- B$30240$
- C$7560$
- D$1260$
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