Question
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?
More Permutation and combination Questions
- How many five digit numbers can be formed using the digits 0, 1, 2, 3, 4 and 5 which are divisible by 5, without repeating the digits?
- In how many different ways can the letters of the word "BANK" be arranged?
- Find total number of ways in which the word “REARRANGED” can be arranged.
- How many 8 digit numbers can be formed using the digits 1, 2, 0, 2, 4, 1, 2, 4 ?
- How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "MONARCH"?
- Five articles out of which 3 are cups and rest are glasses have to be arranged on a shelf. Find the number of ways of arrangement in which all three cups a...
- How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "TRIANGLE"?
- A club has 6 men and 5 women. How many committees of 5 have at least 2 women?
- In How many ways can a student choose a program of 5 courses, if 9 courses are available and 2 courses are compulsory for every student?
- How many straight lines can be formed from 9 points out of which 4 are colinear?
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