HARD
11th ICSE
IMPORTANT
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How many words can be made with the letters of the word INTERMEDIATE if the vowels and consonants alternate in the words?

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Important Questions on Permutations and Combinations

HARD
11th ICSE
IMPORTANT
Understanding ISC Mathematics Class 11 Volume 1>Chapter 8 - Permutations and Combinations>EXERCISE 8.8>Q 7
How many words can be made with the letters of the word INTERMEDIATE if the vowels are always consecutive?
MEDIUM
11th ICSE
IMPORTANT
Understanding ISC Mathematics Class 11 Volume 1>Chapter 8 - Permutations and Combinations>EXERCISE 8.8>Q 7
How many words can be made with the letters of the word INTERMEDIATE if no vowel is between two consonants?
MEDIUM
11th ICSE
IMPORTANT
Understanding ISC Mathematics Class 11 Volume 1>Chapter 8 - Permutations and Combinations>EXERCISE 8.8>Q 7
How many words can be made with the letters of the word INTERMEDIATE if the relative order of vowels and consonants does not change?
MEDIUM
11th ICSE
IMPORTANT
Understanding ISC Mathematics Class 11 Volume 1>Chapter 8 - Permutations and Combinations>EXERCISE 8.8>Q 7
How many words can be made with the letters of the word INTERMEDIATE if the order of vowels do not change?
HARD
11th ICSE
IMPORTANT
Understanding ISC Mathematics Class 11 Volume 1>Chapter 8 - Permutations and Combinations>EXERCISE 8.8>Q 8
Find the value of C447+∑r=15C3(52-r).
MEDIUM
11th ICSE
IMPORTANT
Understanding ISC Mathematics Class 11 Volume 1>Chapter 8 - Permutations and Combinations>EXERCISE 8.8>Q 9
Prove that C3n-1+C4n-1>C3n if n>7 .
MEDIUM
11th ICSE
IMPORTANT
Understanding ISC Mathematics Class 11 Volume 1>Chapter 8 - Permutations and Combinations>EXERCISE 8.8>Q 10
How many numbers can be formed with digits 1,2,3,4,3,2,1, so that odd digits always occupy odd places.
MEDIUM
11th ICSE
IMPORTANT
Understanding ISC Mathematics Class 11 Volume 1>Chapter 8 - Permutations and Combinations>EXERCISE 8.8>Q 11
Find the number of all five digit numbers which have atleast one digit repeated.