Question

in a class of 45 students 9 students failed.what percentage of student passed?

Answer 1

Hi friend!
Here's the solution.....

Total no. of students in a class=45

No. of students who failed =9

No. of students who passed =(45-9)=36

Therefore,
Percentageof students who passed= $\frac{36}{45} \times100$

=4×20

= 80%

I hope it helps you...