Question
A team of 7 researchers is to be formed from 6 biologists and 4 chemists. Find the number of ways to form the team if it must include at least 5 biologists.
More Permutation and combination Questions
- 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?
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- How many straight lines can be formed from 9 points out of which 4 are colinear?
- Using all the letters of the word IMPACT, how many words start with a vowel but end with a consonant?
- Among a set of 4 black balls and 3 white balls, how many selections of 3 balls can be made such that at least 2 of them are black balls?
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- In how many ways can the letters of the word TERRORISTS be arranged by taking 4 letters at a time?
- Using all the letters of the word CANOER, how many words start with a vowel but end with a consonant?
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