What is the saving on 12 pounds by buying it in 3-pound cans?

17. For her birthday party Ruth used the following recipe for making cocoa: To make 4 cups of cocoa, use 2 cups of milk, 2 cups of hot water, 1 tablespoons of cocoa, and 2 tablespoons of sugar. How much of each did she use to make 9 cups?

18. In canning blackberries 2 cups (1 pint or 1 pound) of sugar are required for 2 quarts of berries. If sugar costs $6.80 per hundred pounds (cwt.), berries $1.90 a crate (24 qt.), and quart jars 65 cents a dozen, what will be the cost of a quart of canned berries?

172. Problems of the store.

1. When eggs are selling at 41 cents a dozen, how much money do you need to buy 2

dozen?

2. A remnant of silk yard long sold for $2. How much is that for one yard? Another remnant of the same quality yard long sold for $2.20. Which of the two remnants was the better bargain?

3. For the Thanksgiving day dinner John's father bought a 12-pound turkey at 45 cents a pound. How much did he pay for the turkey?

4. Mary bought a roast of beef weighing 5 pounds at 28 cents a pound. What was the price paid for the roast? 5. If oranges sell at 45 cents a dozen, how much will 18 oranges cost?

6. Garden hose sells at $2.80 for 25 feet. What is the price of 80 feet?

7. If collars sell at 2 for 25 cents, how much will 5 collars cost?

8. If potatoes are selling for $1.10 a bushel, what is the value of a load weighing 1320 pounds?

9. How many pieces of ribbon yard long can be made from 10 yards?

10. How many towels

yard long can be made out of a

piece of material 32 yards long?

173. Finding averages.

1. The following data were taken from the monthly budget of a family of four. Find the average daily expendi

2. The following scores were made by 22 pupils in a test in arithmetic. Find the average.

25, 24, 24, 22, 20, 20, 20, 19, 18, 18, 17, 16, 14, 14, 13, 12, 11, 11, 11, 8, 8, 7.

3. Find the average height of the boys in a class if their heights, in feet, are as follows:

5.2, 5.0, 5.0, 4.9, 4.8, 4.6, 4.5, 4.4, 4.3

4. The attendance in a junior high school for a week was as follows:

Find the average daily attendance.

5. A dealer bought 70 rugs at $95 each. He sold 52 of them at $130 each, and 18 at $115 each. Find the average profit made.

174. Problems of the farm.

1. If 13.5% of the beets raised by a farmer is sugar, how many pounds of sugar can be made from 643 tons of beets?

2. For 60 head of cattle a farmer used 88 tons of hay and 37 tons of straw during the winter. How much hay and straw will he need for 80 head?

3. A farmer who could have sold his potatoes for $.85 in the fall, kept them until spring and sold them for $1.10 a bushel. If about of the potatoes spoiled during the winter, did he gain or lose by holding them over? What was his loss or gain?

4. If 3% of the weight of a cow's milk is butter fat, how many pounds of butter fat are contained in 32 pounds of milk?

5. A cow gives an average of 15 pounds of milk a day and the milk tests 4.1% of butter fat. How much money is received for butter from the cow in one year, if butter averages 32 cents a pound?

6. If a barrel contains 23 bushels of apples and sells at $5.50, how much does a farmer receive for 133 bushels of apples?

7. A farmer set out 260 trees, 213 of which grew. What per cent of the trees grew?

8. Mr. Jones shipped a carload of 25 cattle weighing 29,950 pounds. Find the average weight per head?

9. If a horse eats 12 quarts of oats each day, how many bushels of oats are needed to feed a team of 2 horses for a year?

10. At a store, a farmer wishes to trade several pounds of butter for 2 pounds of tea selling at 60 cents a pound, 6 pounds of coffee at 40 cents a pound, 10 pounds of sugar at 8 cents a pound, and 12 bars of soap at 6 cents a bar. If he asked 37 cents a pound for the butter, how much butter would he have to give in trade?

11. A farmer trades 16 tons of hay for coal. If hay is worth $20 a ton and coal $14.50 a ton how much coal should he receive?

12. A farmer paid $7216 for his 82-acre farm. What was the value per acre?

13. A man bought a 135-acre farm at $80 per acre, onethird cash, the balance remaining at 6% interest. Find the price of the farm, the first payment, and the interest per year on the balance.

14. What is the commission on 620 bushels of potatoes at $1.75 a bushel, if the rate charged is 5%?

15. Mr. Johnson raised 1825 bushels of wheat one year. By fertilizing he increased the crop by 493 bushels the next year. Find the per cent of increase.

175. Percentage problems.

1. Out of his salary of $28 a week a clerk saves $6. What per cent of the salary does he save?

2. In a school of 520 pupils 45% are girls. How many girls are in the school?

3. The following pieces of furniture were sold at a discount of 15%: a couch $48.50; a dining room set $250; 6 chairs $24.50 each; a dresser $68.50. What was the selling price of each?

4. Furs are advertised for the August sale at a discount of 20%. What is the price of a fur coat marked $285?

5. A commission merchant sells $265.50 of hay for a farmer, charging a commission of 6%. How much money does the farmer receive?

6. A grocer buys 144 packages of breakfast food for $12.96. How much must he charge per package to make at least 25% profit?

7. A shoe manufacturer sells his goods at a profit of 15%. How much is his profit on 2300 pairs of shoes if it cost $3.63 a pair to make and sell them?

8. The principal of a junior high school, in an assembly talk, said that since last year the number of pupils had increased 33%. If there were 648 pupils in school last year, how many are there this year?

9. A boy clerks for $12 a week and a 3% commission on the goods he sells. During one week he sold $425 worth of goods. What was his income?