Questions

The probabilities that a student passes in mathematics, physics and chemistry are m, p and c respectively of these subjects the students has 75% chance of passing in at least one, a 50% chance of passing in at least two, and a 40% chance of passing in exactly two. Which of the following
relations are true?

Difficult

A

$p + m + c = \frac{19}{20}$

B

$p + m + c = \frac{27}{20}$

C

$pmc = \frac{1}{10}$

D

$pmc = \frac{1}{4}$

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