Can this question be also answered like – there be 366 subject test (91+95+92+88) which should be taken by 120 students. So if we maximise no. of students taking 3 test (120 X 3= 360) then the no. of students taking 4 test will be minimum i.e 6 people left . Similarly, the other question also.
CAT-holics 
Can this question be also answered like – there be 366 subject test (91+95+92+88) which should be taken by 120 students. So if we maximise no. of students taking 3 test (120 X 3= 360) then the no. of students taking 4 test will be minimum i.e 6 people left . Similarly, the other question also.
Yes, but that method was already discussed in detail in the previous post!
regards
J