Probability

Question : 80 of 127

Marks: +1, -0

For a group of students,

30 \%, 40 \%

and

50 \%

failed in Physics, Chemistry and at least one of the two subjects respectively. If an examinee is selected at random, what is the probability that he passed in Physics if it is known that he failed in Chemistry ?

$1 / 2$
$1 / 3$
$1 / 4$
$1 / 6$

Validate

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