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Mrs. Brown gives two tests to her class. 30% of the class passed both tests and 45% of the class passed the first test. What percent of those who passed the first test also passed the second test?

A)15%

B)33%

C)67%

D)75%

 Jan 23, 2019
 #1
avatar+154 
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Answer might be 15%

 Jan 23, 2019
 #2
avatar+18096 
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30 percent passed BOTH tests.....Only 15% passed ONLY first test

30/(30+15) = 67% of those who passed the first test ALSO passed the second test.

 Jan 23, 2019

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