By increasing the price of entry ticket to a fair in the ratio 5:7, the number of visitors to the fair has decreased in the ratio 11:9. In what ratio has the total collection increased or decreased?
To dispose of the old stocks, a person sold a tea-set for Rs. 3420, which was 43% below the cost price. In order to make a profit of 10% the seller should have sold the set for Rs. ___ more.
Ravi had five subjects in his final examination. The maximum marks in each subject are 100. If his percentage in four subjects is 80, and he scores 65 marks in the fifth subject, determine his overall percentage for the five subjects.