In a class of 70 students, 40 students have passed in Philosophy, 36 have passed in History, 10 students have failed in both the subjects. How many students have passed in Philosophy only?

24

Number of students who passed = 70  - 10 = 60

Given = 40 students who passed in philosophy , 36 passed in history

Number of students who passed in both subjects = (40 + 36) - 60 = 16

Number of students who passed in both philosophy = 40 -16 = 24