There are 15 boys and 10 girls in a class. If three students are selected at random , what is the probability that 1 girl and 2 boys are selected?

There are 15 boys and 10 girls in a class. If three students are selected at random , what is the probability that 1 girl and 2 boys are selected? Correct Answer 2146

1 girl & 2 boys can be selected in = (10C1) × (15C2) ways = 10 × 105 ways = 1050 ways. 3 students can be selected from 25 students = 25C3 = 2300 ways Required probability = 1050/2300 = 21/46. Ans: C
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