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A class word has 40 student. 25 boys and 15 girls. a student of the class is selected at random as the monitor. find the probability of selecting a girl student as the monitor. |
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Answer» Given, NUMBER of students = 40 . Number of girls = 25 Number of boys = 40 - 25 = 15 . So, Probability of selecting a BOY is required to be found. Sample space is the class. n ( S ) = 40 Number of favourable outcomes are 15 . So, Probability of selecting a boy = 15 / 40 = 3 / 8 |
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