the avg of marks obtained by 120 candidates was 35. If the avg of passed candidate was39 faild candidatte was 15 the num of candidates who passd the xamination?
Candidates who passed the exam is X
And failed is 120-X
X is 100
Candidates who passed the exam is 100
hi wanna b ur frnd...
Total of passed one's + total marks of failed one's=35*120
No. Of passed + no. Of Failed= 120
But it was given that..
Total passed one' Marks= 39 * no. Of passed
And total failed one's Marks = 15* no. Of failed..
Finally we have 4 equations and 4 unknowns..
So we solve it..
Ans is 100...
Ans me wit detail
100 students passed