Question

1. In a class there are 40 students. 90% of them take exams; 3/4 of those who took the exam passed. How many students graduated?

A. 27
B. 30
C. 33
D. 36​

Answer 1

A. 27

Explanation:

There are 40 students and 90% of them take exams

(40 students) * (0.9) = 36 students took exams

Of those 36 students, 75% (or 3/4) of them passed. Assuming passing exams means graduating:

(36 students) * (0.75 ) = 27 students graduated