16. A man bought some cows at $35 each, and the same number at $45 each. What was the average price? 17. A girl received 100 per cent in three studies, and 80 per cent in the fourth. What was her average? 18. A square floor contains 144 square feet. How many feet long and wide is it? 19. Mr. Brown mixed 3 pounds of black tea worth 40 cents a pound with 1 pound of 60-cent green tea. What is the mixed tea worth a pound? 640. Slate Problems. 1. A milliner sells 3 pieces of ribbon at 18 cents per yard. They measure 4 yd., 34 yd., and 5 yd., respectively. What is the amount of her bill? 2. How many feet and inches in 5 of a yd.? 3. To make powder, a man mixes 74 lb. of saltpetre, 17 lb. of sulphur, and as much charcoal as sulphur. How many pounds of powder will there be? 4. Four men form a partnership; the first furnishes of the capital, the second, and the third. What fraction capital is furnished by the fourth? of the pay for 5. I pay 15 cents more for a half pound of tea than I a quarter pound of the same tea. What is its price per pound? 6. After doing of a piece of work, a man requires 3 days more to finish it. How many hours does he take to do the whole work if he works 8 hours per day? 7. If 1 lb. 7 oz. coffee cost 46 cents, what will 3 lb. 9 oz. cost? 8. Add 14 days 6 hours 50 minutes and 15 days 17 hours 10 minutes. 9. If a dozen pairs of gloves cost $15.25, what will be the cost of 60 pairs? Cancel. 10. 15 men do a piece of work in 10 days. How long would it take 5 men to do the same work? 11. To make a cloak 3 yd. of cloth 1 yards wide are required. How much cloth & yd. wide would be required? 12. In 3 years 4 months a gas company manufactures 4,200,000 cubic feet of gas. How many cubic feet are manfactured per year? 13. If 2 dozen hats cost $80, what will be the cost of 3 hats? 14. A boy hires a boat at 20 cents per hour. How much has he to pay if he uses it from 20 minutes before 9 A.M. until 10 minutes past 1 P.M.? 15. A and B kill an ox. A takes and B the remainder. If B's share weighs 3611⁄2 lb., what is the weight of the ox? 16. A grocer buys 30 dozen eggs at 18 cents per dozen. He sells them at the rate of 15 eggs for 25 cents. What is his profit? 17. How many cents in of a dollar? 19. A farmer buys a horse for $140, and sells it at an advance of of the cost. What is the selling price? 20. In 1893, A was 36 years old and B was 14 times as old. In 1884, B was how many times as old as A? 21. From the sum of 18,7 and 25 take their difference. 22. If 2 acres of land cost $220, what will be the cost of 177 acres? Indicate the work, and cancel. 23. A can do a piece of work in 6 days, B can do it in 6 days, C can do it in 6 days. How long will it take all three working together? 24. Find the value of of 3 of 21 of its cost, losing $40. What 25. A man sold a horse for did the horse cost him? FRACTIONAL PARTS OF A DOLLAR. 641. Oral Problems. 1. How many 50-cent base-balls can be bought for $15? (15÷1) 2. How many 75-cent base-balls can be bought for $15? (15) 3. At 75 per lb., how much tea can be bought for $1? 4. How many hats at $1.25 each can be bought for $15? (15÷14) 5. Paid $16 for coffee at 25¢ per lb. How many pounds were purchased? 6. At 33 per lb., how many pounds of butter can be bought for $32? 7. Find the number of yards of ribbon, at 12 per yd., that will cost $45. 8. At 61 per bar, how many bars of soap will cost $11? 9. If 4 pieces of violet soap are sold for 25¢, how many can be bought for $9? 10. $24 is paid for corn at 75¢ per bu. How many bushels? 11. I spent $30 for lace at 663 per yard. How many yards did I buy? 12. For $36 how many pairs of rubber shoes can be bought at 371⁄2¢ per pair? 13. Oats are 621 per bu. How many bushels will $40 buy? 14. A farmer pays 87 per bu. for seed rye. If his bill amounted to $21, how many bushels did he buy? 15. A store-keeper sold $33 worth of collars, at 16¢ each. How many did he sell? 16. At the rate of 3 for 50, how many collars can be bought for $25? 17. Corn is worth 20 per can. How many cans will cost $32? 18. Find the cost of 35 yards of cloth, at $1.25 per yard. 19. At $1.25 per yard, how many yards of cloth can be bought for $35? 20. How many pairs of gloves, at $1.75 per pair, will cost $28? 21. When coal is $5.25 per ton, how many tons can be bought for $42? 22. Cost of 16 pairs of shoes at $2.75? 23. 33 jackets at $3.33? 24. 18 yd. cloth at $2.16 ? 25. Paid $26 for cloth at $2.16 per yard. How many yards did I buy? 26. Find the cost of 16 pairs of skates at $1.87 per pair. 27. If sheep cost $3.12 each, how many can I get for $75? 28. How many 25-cent balls can be bought for $8.75? 29. Divide 775 by 25. 30. Divide $8.25 by 75%. 31. How many square feet are there in a lot 96 ft. long 25 ft. wide? 32. Find the total cost of 32 head of cattle at $75 per head. 33. How much must be paid for 32 cows at $37.50 each? 34. If sheep are worth $3.75 each, how much will a farmer receive for 32 sheep? 35. If a train goes at the rate of 25 miles hours will it take to go 675 miles? per hour. how many 1. Copy the above. Supply the missing amounts. 2. John R. Schultz has bought the following goods of Arthur B. Rowe & Co. : Jan. 3, 1894, 50 lb. of sugar, at 51; 4 lb. of tea, at 621¢. Jan. 4, 10 lb. of coffee, at 321; 2 bbl. of flour, at $5.75. Jan. 9, 24 bars of soap, at 163; 42 lb. of starch, at 8. Make out a bill dated Feb. 1, 1894. 3. Make out a bill for the following articles bought during March and April. Supply the names of buyer and seller, also the dates. 231 yd. of silk, at 804; 18 yd. of lace, at $2.40; 64 yd. of muslin, at 67; 8 spools of sewing silk, at 7; 4 pr. of stockings, at 65; 6 yd. of linen, at 87; doz. collars, at $2.10. 4. Make out a bill for the following goods bought June 15. 3 cases of torpedoes, at $2.20; 12 boxes of fire-crackers, at $1.62; 3 gross pin wheels, at $1.35; 5 gross sky-rockets, at $3.25; 2 doz. balloons, at $2.25; 45 lanterns, at 94. |