A committee of 4 is to be selected from among 5 boys and 6 girls. I how many ways can this be done if the committee is to consist of at-least one Girl?
what is the answer choice and how?  Choose the correct choice from the following choices:
A) 105
B) 225
C) 230
D) 310
E) 455
I'm sure there is some problem with the question.   R U sure its atleast one boy and not atleast 1 boy and 1 girl?   if its 1 boy and 1 girl   6C1*5C3 + 6C2*5C2 + 6C3*5C1   6*10 + 15*10 + 20*5   60 + 150 + 100   310   310
<result>D</result>
A committee of 4 is to be selected from among 5 boys and 6 girls. I how many ways can this be done if the committee is to consist of at-least one Girl?
what is the answer choice and how?