In an examination, 35% students failed in Mathematics and 25% failed in English. If 15% failed in both subjects, what percentage passed in both subjects?
Show answer & explanation
Correct answer: C
Explanation
Failed Math = 35%
Failed English = 25%
Failed both = 15%
Failed at least one subject:
= 35% + 25% − 15%
= 45%
So passed both subjects:
= 100% − 45%
= 55%
Correct answer: 55%