7. A section of Class VII consists of 45 students out of which 15 are boys and the rest are girls
Find the probability that a student chosen at random is a. a boy and b girl.
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total number of students = 45
total number of boys =15
total number of girls =45-15= 30
probability of getting a girl = 30/ 45
= 2/3
probability of getting a boy = 15/45
= 1/3
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