MEDIUM
11th CBSE
IMPORTANT
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In how many ways can a lawn tennis mixed double be made up from seven married couples if no husband and wife play in the same set?

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Important Questions on Permutations

EASY
11th CBSE
IMPORTANT
m men and n women are to be seated in a row so that no two women sit together. If m>n, show that the number of ways in which they can be seated as m!m+1!m-n+1!
EASY
11th CBSE
IMPORTANT
How many words (with or without dictionary meaning) can be made from the letters in the word MONDAY, assuming that no letter is repeated, if 4 letters are used at a time?
EASY
11th CBSE
IMPORTANT
How many words (with or without dictionary meaning) can be made from the letters in the word MONDAY, assuming that no letter is repeated, if all letters are used at a time?
EASY
11th CBSE
IMPORTANT
How many words (with or without dictionary meaning) can be made from the letters in the word MONDAY, assuming that no letter is repeated, if all letters are used but first is vowel?
EASY
11th CBSE
IMPORTANT
How many three letters words can be made using the letters of the words 'ORIENTAL'?
EASY
11th CBSE
IMPORTANT
Find the number of words formed by permuting all the letters of the following word INDEPENDENCE.
EASY
11th CBSE
IMPORTANT
Find the number of words formed by permuting all the letters of the following word INTERMEDIATE.
EASY
11th CBSE
IMPORTANT
Find the number of words formed by permuting all the letters of the following word ARRANGE.