Class 11MathematicsPermutation and CombinationDefinition of permutation, Number of permutations with or without repetition, Conditional permutations
EasyHow many distinct words can be formed using the letters of the word $EQUATION$ such that the word starts and ends with a consonant?
- A$720$
- B$4320$
- C$1440$
- DNone of these
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View SolutionAll possible numbers are formed using the digits $1, 1, 2, 2, 2, 2, 3, 4, 4$ taken all at a time. The number of such numbers in which the odd digits occupy even places is
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