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How to choose two girls out of 3 boys and 6 girls?

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A group of students has 3 boys and 6 girls. Two are chosen at random to represent the school in a spelling competition. Find the probability that both are girls.

posted Mar 29, 2014 by Salil Agrawal

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1 Solution

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Total number of ways to select two students = 9C2 = 36
Total number of ways to select two girls from 6 gals = 6C2 = 15
Probability = 15/36= 5/12

solution Apr 20, 2014 by Priyaa Trippayar Sahasranaman

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