Out of 25 students ,participating in a quiz competition 10 girls . Find the probability that the winner is a boy
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Total students = 25. No. Of girls = 10. No. Of boys = 25-10= 15. Probability that a winner is a boy= no.of boys / total no. Of students. Probability= 15/25 = 3/5 = 0.6
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Total participants= 25.......... No. Of girls = 10......... Therefore no. of boys= 25-10= 15.......... Let E be the event that winner is a boy........... So P(E)= 15/25= 3/5. ...... Therefore probability is 3/5..
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