Hemant sold 10 sarees for a total profit of Rs. 460 and 12 sarees for total profit of Rs. 144. At what profit per saree should he sell the remaining 20 sarees so that he gets an average profit of Rs. 18 per saree?
A fruit seller bought oranges at the rate of 6 for Rs. 20. How many oranges, he should sell in Rs. 820 in order to make a profit of 23%?
