Question : In an examination, 19% of students failed in Mathematics and 10% of students failed in English. If 7% of all students failed in both subjects, then the percentage who passed both subjects is:

Option 1: 36% of all students

Option 2: 64% of all students

Option 3: 71% of all students

Option 4: 78% of all students

Question : Directions: Among 80 students, 24 passed in Chemistry, 35 passed in Physics, and 29 passed in Mathematics. 8 students did not appear for the examination. If 2 students have passed in all three subjects, 2 students have passed in Physics and Chemistry both but not in Mathematics, 2 students have passed in Chemistry and Mathematics both but not in Physics, and 8 students have passed in Physics and Mathematics both but not in Chemistry, then how many students have passed in Mathematics only?

Option 1: 19

Option 2: 18

Option 3: 20

Option 4: 17

Question : In an examination, 52% of students failed in Hindi and 42% in English. If 17% failed in both subjects, what percentage of students passed in both subjects?

Option 1: 38%

Option 2: 33%

Option 3: 23%

Option 4: 18%