Class 11MathematicsPermutation and CombinationDefinition of permutation, Number of permutations with or without repetition, Conditional permutations
EasyHow many $5$-digit numbers can be formed using the digits $3, 4, 7$ once each and the digit $5$ twice?
- A$30$
- B$60$
- C$45$
- D$90$
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View SolutionIf the letters of the word "$CAPITAL$" are permuted in all possible ways and the words are arranged in a dictionary order,then the rank of the word "$CAPITAL$" is
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