In how many ways can a committee of 6 people comprising at least 3 boys be formed using a group of 5 boys and 6 girls? Choose the most appropriate option
A) 67
B) 64
C) 65
D) 66
E) None of these
There are 2 options: the selected groups have no girls or one girls.   -First case: 1 girl + 3 boys: 6C1 * 5C3 = 6*10= 
<gadget id="calculator">6*10</gadget>
<output>60</output>
60   -Second case: 4 boys: 5C4= 5   So there are 60 + 5 = 67 ways in total.   67
<result>A</result>
In how many ways can a committee of 6 people comprising at least 3 boys be formed using a group of 5 boys and 6 girls?