Question

About 36% of the students are in 7th grade. What percentage of students are NOT in 7th grade?

Answer 1

64 percent are not in class

Answer 2

Let the total number of students be a,


We know, full of anything is its 100% or 1 .

So,
Total number of students are 100%.

It is given in the question that 36% of the total students are in 7th grade.
Hence,
Number of students who are in 7th =a x 36% = a x 36 / 100 = 0.36 a


So,
If we subtracted the number of students who are in 7th grade from the total number of students.

= > a - 0.36 a = Total number of students who are not in 7th grade

= > 0.64 a = Total number of students who are not in 7th grade

= > 64% x a = total number of students who are not in 7th grade.



Hence,
64% of the total number of students are not in 7th grade..
$\:$