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 per

Question

irakobra [83]

2 years ago

10

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 per

cent of those who passed the first test also passed the second test?

Mathematics

1 answer:

Rus_ich [418] · Answer 1 · 2022-09-05T15:50:50+03:00

Rus_ich [418]2 years ago

7 0

<span>So 30 out of the 45 who passed the first test also passed the second test.
As a percent this is
</span>
$\frac{30}{45}=\frac{2}{3}=66\tfrac{2}{3}\%$