Chandrakant mankar Asked a Question
April 12, 2020 6:10 pmpts 30 pts
Ex 3: If you have 6 New Year greeting cards and you want to send them to 4 of your friends, in how many ways can this be done? Sol: We have to find number of permutations of 4 objects out of 6 objects. This number is P, =6 (6-1) (6-2) (6-3)= 6.5.4.3= 360 Therefore, cards can be sent in 360 ways. please let me know how n=6, r=4, but how you take r =3.. CSA 1,Page 49
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  • Chandrakant mankar
    thanks for answering
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  • Komal bhati Best Answer
    explanation.. hope you got it..
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