In an exam, 70% candidates passed in physics and 80% candidates passed in reasoning. If 55% passed in both, what percent failed in both subjects?

A student scored 65% marks in an exam. If he scored 78%, 70%, 62% and 65% marks in four subjects out of five subjects, then what is his percentage of marks in the fifth subject?

37.5% of the candidates in an examination were girls. 75% of the boys and 62.5% of the girls passed, and 342 girls failed. The number of boys failed was

40% read Newspaper X and 50% read Newspaper Y. If 10% read both, what percentage read neither newspaper?

Darshan scored 85% in Preliminary exam with max marks 1200 and 70% in Main exam with max marks 800. What is combined %?

If 30% of P is added to 40% of Q, it becomes 80% of Q. Accordingly, what is the percentage of Q with respect to P?