Question
There are 10 boys and 15 girls in the commerce class. Three students are selected at random. The probability that two girls and one boy are selected is.
More Permutation and combination Questions
- In how many different ways can the letter of the word ‘STRONG’ be arranged?
- How many 8 digit numbers can be formed using the digits 1, 2, 0, 2, 4, 1, 2, 4 ?
- Using all the letters of the word IMPACT, how many words start with a vowel but end with a consonant?
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- In how ways can the selection be made so that a particular member is always included?
- From a group of 8 girls and 7 boys, a committee of 9 is to be formed. In how many ways can the committee be formed if it must include at least 6 girls?
- Six dancers are to be lined up for a stage entry. Among them, three are from the same team and must not be adjacent. How many valid line-ups are possible?
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- How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "CAMPFIRE"?
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