$36$ students took English and Math test. $25$ passed English, and $28$ passed Math. $20$ passed both subjects.
a. How many students failed both subject?
b. How many students passed english only?
c. How many students passed math only?
$36$ students took English and Math test. $25$ passed English, and $28$ passed Math. $20$ passed both subjects.
a. How many students failed both subject?
b. How many students passed english only?
c. How many students passed math only?