There are 45 students in a class. 80% of the students passed the exam. How many students failed in the exam?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 9.
Explanation:
The percentage of passed students = 80%
Now, the percentage of students failed = 100% - 80 = 20%
The number of students failed = 20% of 45
⇒ (20/100) × 45
⇒ 45/5 = 9