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p% of the students of a class passed the...

p% of the students of a class passed the exam. g% of the passed students are girls and b% of the fail students are boys. The percentage of passed boys over the failed girls is :

A

`((bg)/(p) xx 100)`

B

`(100(100-g)p)/((100-p)(100-b))`

C

`((100-g)(100-b))/((100-p))`

D

none of these

Text Solution

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The correct Answer is:
B
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