Class 11MathematicsPermutation and CombinationDefinition of permutation, Number of permutations with or without repetition, Conditional permutations
EasyHow many different signals can be generated using $5$ flags from $8$ flags of different colors?
- A$56$
- B$6720$
- C$5840$
- DNone of these
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How many words,with or without meaning,each of $3$ vowels and $2$ consonants can be formed from the letters of the word $INVOLUTE$?
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View SolutionAll 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
The number of $7$ digit numbers which can be formed using the digits $1, 2, 3, 2, 3, 3, 4$ is
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View SolutionIn how many ways $n$ books can be arranged in a row so that two specified books are not together?
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View SolutionWhat is the rank of the word "$MOTHER$" when all possible words are formed using all its letters and arranged as in a dictionary?
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