Question

in class test 90% of the students passed while the rest faild if the number of faild students was 3 how many students where there in class ? ​

Answer 1

Step-by-step explanation:

90% passed

so 10% failed

10/100*x=3

10x/100=3

10x=3*100=300

x=300/10=30

so there are 30 students

Answer 2

% of failed students=100-90

=10%

Let the total no. of students be x

then, 10% × x=3

10/100×x=3

10x/100=3

10x=300

x=300/10

x=30

hence total no of students is 30

hope this will helpful dear