SOLUTION: 1.how many ways can a disc jokey plays 3 songs out of 5 most requested songs? 2. In a given examination, a student is required to answer 5 of the 7 questions, 3 of which must be t

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Question 1162567: 1.how many ways can a disc jokey plays 3 songs out of 5 most requested songs?
2. In a given examination, a student is required to answer 5 of the 7 questions, 3 of which must be taken from the first 4 questions. In how many ways can he answer the examination?
3.How many numbers can be formed out of the digits 1,2,3 where repetition on the digits is not allowed?
4.In how many ways can 7 people be seated at a round table if:
a. they can sit anywhere
b. Three particular people must sit next to each other.
c.Three particular people must NOT sit next to each other.


Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

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