Six girls and four boys have entered the science fair. First, second, and third place awards are to be given out.What is the probability that a girl wins the first place award while boys will receive the second and third place awards? Express your answer as a percent.

The probability that a girl wins first place is 6/10. After that, 4 boys remain among 9 contestants, so the probability that boys win second and third is (4/9) × (3/8). Multiplying gives (6/10) × (4/9) × (3/8) = 0.10, or 10%. The correct choice is A, 10%.

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