Ask your own question, for FREE!
Mathematics 22 Online
OpenStudy (rational):

Help

OpenStudy (rational):

OpenStudy (rational):

just the start... hard problems - yet to come :P but please help me wid this problem for now

OpenStudy (anonymous):

haha

hartnn (hartnn):

Selecting \(r\) things from total of \(n\) thing has \(\Large ^nC_r\) number of ways

hartnn (hartnn):

selecting 1 cherry from 6 cherries will be ?

OpenStudy (rational):

yeah and few of them are same things

OpenStudy (rational):

6 ways

hartnn (hartnn):

selecting 2 lemon candies from 2 lemon candies ?

OpenStudy (rational):

1 way

hartnn (hartnn):

correct! so thats your numerator

hartnn (hartnn):

selecting 3 things from total of 6+2+3 things ?

OpenStudy (rational):

wow that looks simpler than i had thought xD

OpenStudy (rational):

would the denominator be 11 C 3 ?

hartnn (hartnn):

correct :)

OpenStudy (rational):

thanks so much :)

hartnn (hartnn):

welcome ^_^ Its easy because you have taken an easy problem, Permutation, Combinations can be really tricky sometimes :)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!