Class 11MathematicsPermutation and CombinationDefinition of permutation, Number of permutations with or without repetition, Conditional permutations
DifficultThe number lock of a suitcase has $4$ wheels,each labelled with ten digits,i.e.,from $0$ to $9$. The lock opens with a sequence of four digits with no repeats. What is the probability of a person getting the right sequence to open the suitcase?
- A$\frac{1}{5040}$
- B$\frac{1}{2520}$
- C$\frac{1}{10000}$
- D$\frac{1}{5000}$
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DifficultAP EAMCET 2023
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