Answer:
9000 school graduates.
Explanation:
Given,
Only 6/10 graduates receive a diploma and 5400 students graduated last year.
6 people regents exam when the total graduates are = 10
1 people regents exam when the total graduates are = 10/6
5400 people regents exam when the total graduates are = (10/6)*5400
= 9000
So, the total number of high school graduates is 9000.