UPSC 2008: In an examination, 70% of the students passed in the Paper I, and 60% of the students passed in the Paper II. 15% of the students failed in both the papers while 270 students passed in both the papers. What is the total number of students?

The correct answer is option (a): 600. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.

This question was asked in UPSC CSE Prelims 2008, GS Paper 1, as Question 7. It falls under Science & Technology > Quantitative Aptitude.

This question is rated "moderate". It requires sound conceptual understanding of the topic.

UPSC has asked 164 questions from Quantitative Aptitude (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.