Class 11MathematicsPermutation and CombinationDefinition of permutation, Number of permutations with or without repetition, Conditional permutations
EasyThe number of $7$ digit numbers which can be formed using the digits $1, 2, 3, 2, 3, 3, 4$ is
- A$420$
- B$840$
- C$2520$
- D$5040$
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Similar Questions
In how many ways can the letters of the word "$ASSASSINATION$" be arranged so that all $S$'s are together?
All the letters of the word $PUBLIC$ are written in all possible orders and these words are written as in a dictionary with serial numbers. Then the serial number of the word $PUBLIC$ is
Eight different letters of an alphabet are given. Words of four letters from these are formed. The number of such words with at least one letter repeated is:
Assuming that no two consecutive digits are same,the number of $n$-digit numbers is:
Difficult
View SolutionHow many numbers between $99$ and $1000$ can be formed using the digits $2, 3, 7, 0, 8, 6$ if each digit is used only once?
Medium
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