In an examination, a student must get 60% marks to pass. If a student who gets 120 marks, fails by 60 marks. Find the maximum marks.
Given : % of students who failed in one subject only =(x−z)%
And % of student who failed in other subject =(y−z)%
% of student who failed in two subjects =z%
Then, passed students =[100−[(x−z)+(y−z)+z]]
=100−(x+y−z)
Given a student get 60% marks to pass and gets 120 marks
and fail by 60 marks
Then maximum marks =100(120+60)60=100×18060=300