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UPSC Prelims

Mathematics

Theme:

Percentage / प्रतिशत

Q54 2021, Percentage

P scored 40 marks more than Q in an examination. If Q scored 10% less marks than P, then how much did Q score?

एक परीक्षा में P ने Q से 40 अंक अधिक प्राप्त किए । यदि Q ने P से 10% कम अंक प्राप्त किए, तो Q ने कितने अंक प्राप्त किए ?

Explanation Please wait..

P scored 40 marks more than Q.

If we take marks of Q as ‘q’ then marks of P= q + 40.

Q scored 10% less marks than P i.e., q = 90% of P.

Then, q= (90/100)* (q - 40).

Or 10q = 9q + 360

So, q = 360.

So, Q scored 360 marks.

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