contestada

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?

Respuesta :

So 30 out of the 45 who passed the first test also passed the second test.
As a percent this is

[tex]\frac{30}{45}=\frac{2}{3}=66\tfrac{2}{3}\%[/tex]
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