20. An automobile purchased for $1800 was sold for $1400 one year later. What was the per cent of the price reduction? 21. Milk was sold for 12 cents a quart in a certain city, and within a few years the price was raised to 14 cents. Find the per cent of increase in the price. FURNITUR! was 22. A table purchased for $16.50 and sold for $20. The cost of selling, including advertising, packing, delivering, etc., was $1.30. What per cent of the purchase price was gained? What per cent of the selling price was gained? 23. A man earned $945 and saved $56.70 of this amount. What per cent did he save? 24. A pound of crackers sells at 8 cents per pound (16 ounces). The same crackers sell at 5 cents a package weighing 472 ounces. What per cent does a housekeeper save if she buys crackers in bulk? 25. Due to a safety campaign, the annual number of deaths due to accident was reduced from 54,011 to 51,406. Find the rate of decrease. 26. The average retail price per pound of round steak from 1913-1923 was as follows: $.22, $.233, $.239, $.250, $.296, $.369, $.389, $.395, $.344, $.323, $.355. Find the per cent of increase for each year. Year.. Price per pound. % increase. 150. How to find the base by using the percentage formula. Exercise 1, below, illustrates how the percentage formula may be used to find the base. EXERCISES 1. Find the number 5% of which is 75. Solution: p= 5 p=75 2. When gas is made from coal, about 70% of the coal used is changed to coke. How many tons of coal must be burned to make 4500 tons of coke? 3. How much money must a man invest so that a profit of $2550 be 15% of his investment? 4. If only 60% of an army is actually fighting, the others being needed to take care of the fighting men, how large an army is needed if 1,500,000 men are to be available for fighting? 5. In buying a house a man agreed to pay down 25 per cent of the purchase price. This amounted to $2125. What was the price of the house? DISCOUNT 151. Meaning of discount. Merchants use percentage in sales of goods. During a January sale a mer chant advertised overHere's an Actual Bargain! coats for sale at a reWardrobe Trunks duction of 20% of the marked price. Such a Regular reduction is called a $65 Value discount. Discounts are often given to at55% Discount tract trade and can be found advertised in most newspapers. An EXERCISES 1. Find the sale price Genuine Cowhide for each of the articles in 160%Discount 45% Discount the adjoining advertise ment, using the formula Sale price=old price minus rate per cent times old price. 2. What is the sale price of an automobile tire listed at $36.50 with a discount of 20%? 3. A merchant buys $900 worth of goods with a 10% discount for paying cash. How much does he save by paying cash? 4. Shoes marked at $5.50 are offered for sale at a discount of 15%. At what price are they sold? 5. A merchant offers house furnishings for sale at a discount of 25%. Find the price of the following goods: A chair marked $7.25 $63.50 $52.25 $58.00 $84.00 6. Find the price of 100 spools of cotton at $18.34 per thousand at a discount of 40%. 7. Find the sale price of each of the following articles sold at the discount quoted: 8. During a season when business was slow, a merchant announced certain goods marked down in price for a quick sale. Find the price at which each article was to be sold: |