Class 11MathematicsPermutation and CombinationDefinition of permutation, Number of permutations with or without repetition, Conditional permutations
EasyHow many words can be made from the letters of the word $DELHI$,if $L$ comes in the middle in every word?
- A$12$
- B$24$
- C$60$
- D$6$
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Similar Questions
Let $P$ be the set of seven-digit numbers with the sum of their digits equal to $11$. If the numbers in $P$ are formed by using the digits $1, 2,$ and $3$ only,then the number of elements in the set $P$ is:
DifficultJEE MAIN 2025
View SolutionIf $0 < r < s < n$ and ${}^n P_r = {}^n P_s$,then find the value of $r + s$.
Find the number of different $8$-letter arrangements that can be made from the letters of the word $DAUGHTER$ such that all vowels occur together.
Easy
View SolutionThe total number of words that can be formed by using all the letters of the word $ALLEN$ such that all vowels occur in alphabetical order is:
Difficult
View SolutionThe total number of permutations of the letters of the word "$BANANA$" is
Easy
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