An article is sold at a certain price. If it is sold at \(33\frac{1}{3}\%\) of this price, there is a loss of \(33{1\over3}\%\). What is the percentage profit or percentage loss when it is sold at 40% of the original selling price?
Sudha bought 80 articles at the same price. She sold some of them at 8% profit and the remaining at 12% loss resulting in an overall profit of 6%. The number of items sold at 8% profit is:
A alone can complete a work in 30 days while B alone can complete the same work in 20 days. In how many days both working together can complete the same work?