Class 11MathematicsPermutations and CombinationsDefinition of permutation, Number of permutations with or without repetition, Conditional permutations
EasyHow many $3$-digit numbers can be formed by using the digits $1$ to $9$ if no digit is repeated?
- A$504$
- B$729$
- C$81$
- D$27$
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DifficultJEE MAIN 2024
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