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in a class there are 25 girls and 15 boys.......
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mark a book belonging to a boy first
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total no. of students=25+15=40
2) no. of boys =15
probability=15/40=3/8
1)no. of girls=25
probability=25/40=5/8
2) no. of boys =15
probability=15/40=3/8
1)no. of girls=25
probability=25/40=5/8
srajansstar:
thanks
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