Question
How many 5-digit numbers can be formed using digits 1–7 such that digits are odd-even-odd-even-odd?
More Permutation and combination Questions
- In how many different ways can the letter of the word ‘STRONG’ be arranged?
- A team of 4 members is to be formed from 5 girls and 4 boys. Find the number of ways to form team such that the team consists of at most 2 girls.
- In how many ways can 5 boys and 3 girls be arranged in a row so that no two girls sit together?
- There are 3 identical toys and 4 identical books. How many distinct arrangements are possible on a shelf such that all three toys do not appear together?
- A group consists of 8 boys and 6 girls. In how many ways can 4 boys and 2 girls be selected from the group?
- In how many ways Barcelona’s football team captain and vice-captain be elected from a team of 15 men?
- Find total number of ways in which the word “TERRITORY” can be arranged.
- In how ways can the selection be made so that a particular member is always included?
- In how many different ways can the letters of the word "AIRSTRIKE" be arranged if all the vowels must always be grouped together?
- How many 4-digit numbers can be formed using digits 1–9 if repetition is not allowed and the number is even?
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