- #1
ritwik06
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Homework Statement
There are 5 girls and 2 boys. A committee of 3 members is to be formed such that there is at least one boy in the committee. Find the number of ways of doing so.
The Attempt at a Solution
One place is fixed for a boy. So choosing one boy out of 2: 2C1
I am left with 2 places and 6(5 girls+1 boy left) people to choose from, therefore number of ways = 6C2
Total ways= 6C2 *2C1
=30
But my book gives me the answer 25. What is wrong with my solution?