In a class, there are 15 boys and 10 girls. Three students are
selected at random. The probability that 1 girl and 2 boys are
selected, is:
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Answer Posted / md.vali hasan
total ways to select three people is 25C3.
2 boys can be selected by 15C2 ways.
1 girl can be selected by 10C1 ways.
so probability of 1 girl and 2 boy are selected is-
15C2*10C1/25C3 = 0.456 .
| Is This Answer Correct ? | 21 Yes | 2 No |
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