out of 1200 students,960 in science,852in mathematics,120 failed in both subject and 84 did not appear in an examination.find the number of students who passed in both subject​
first we can take 84 out of the total of 1200 because they didnt even take a exam and then we can take 120 out of that because those are the students who failed which leaves us with 996 students who passed both subjects.
