In a certain college, 25% of the students failed mathematics, 15% of the students failed chemistry and 10% of the students faile
d both mathematics and chemistry. a student is selected at random. if he failed chemistry what is the probability that he failed mathematics?
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Hey there!
First, let's multiply each side of the equation by 3 to get rid of the fraction .
9 + 2x =
Next we can multiply each side of the equation by 5 to get rid of the fraction .
45 + 10x = 6
There's your answer!
Hope this helps!