For the following questions answer them individually
There are 120 hens in a poultry. Due to the addition of 140 more hens, the expenses of the poultry increases by Rs. 4050 while the average expenditure per hen diminishes by Rs. 3. What was the original expenditure of the poultry?
The average of 17 numbers is 47. If each of the numbers is multiplied by 6, then find the new average.
The difference between simple interest on a certain sum at the annual rate of 10 percent for 7 years and 8 years is Rs. 57. What is the sum?
Cost price of a cooler is Rs. 6400. If the profit percentage is 24 percent, then what is the selling price of the cooler?
Calculate the area of a right-angled triangle with a base of 22 cm and height corresponding to that base is 15 cm.
If the ratio of marked price and selling price of a article is 13 : 9, than what is the discount percentage?
The profit earned on selling an article for Rs. 4550 is 5 times of the loss incurred on selling the same article for Rs. 3290. What will be the selling price of the article to earn a profit of 20 percent?
Abhishek marks the price of his laptop 80 percent above the cost price. He allows his customer a discount of 25 percent ou the marked price. What is the profit percentage?