A runs \(1 {2 \over 3}\) times as fast as B. If A gives B a start of 80 m, how far must the winning post be so that A and B might reach it at the same time?
The selling price of an article is Rs. 624 when it is sold at 30% profit. If the cost price of the article is increased by Rs. 50 and the selling price is increased by Rs. 60, then what will be the profit percentage (nearest to an integer)?
Three successive discounts of 40%, 25% and 20%, respectively, on the marked price of a chair, are equal to a single discount of Rs.960. The marked price (in Rs) of the chair is: