SOLUTION: Find the number of ways of selecting 3 prefects in a class of 15 boys and 10 girls if one of the prefect must Be girl.
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Question 1117242: Find the number of ways of selecting 3 prefects in a class of 15 boys and 10 girls if one of the prefect must Be girl. Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website! One must be a girl so one position has 10 choices.
The remaining positions have 24 choices (10+15-1).
