SOLUTION: In a class of 40 pupils, 18 are boys. 12 of the girls and 8 of the boys passed a Mathematics test. If a boy is selected at random, the probability that he passed the test

Question 858259: In a class of 40 pupils, 18 are boys. 12 of the girls and 8 of the boys passed a
Mathematics test. If a boy is selected at random, the probability that he passed the test
Answer by Seutip(231) (Show Source): You can put this solution on YOUR website!
Getting probability(P) we use the formula:

So the no. of possible outcomes is 18 since there are 18 boy pupils, and the favorable is 8 since only 8 passed.
So,

or

Hope that helps!
:)

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