Εικόνες σελίδας
PDF
Ηλεκτρ. έκδοση
[blocks in formation]

1. The temperature at noon on Monday was 40°. It rose 8° on Tuesday, fell 17° on Wednesday, rose 3° on Thursday, fell 16° on Friday, and rose 14° on Saturday. What was the temperature on Saturday?

2. At $9.25 per M, what is the cost of 12,400 bricks? 3. A dealer sells from a roll of ribbon 60 yd. long the following quantities: .875 yd., ‡ yd., 31 yd., 21 yd., 51⁄2 yd., and 8.5 yd. How many yards has he left? What

per cent of the original piece?

4. How much carpeting 27 in. wide will be required to carpet a room 15 ft. by 161 ft., allowing 1 ft. on each strip except the first for matching?

5. A dealer puts up 192 sample packages of tea in -oz. packages. How many pounds of tea did he put up?

6. Mr. Curtis bought 13 A. of land for $3000. He cut it up into lots containing 32 sq. rd., each of which he sold for $800. What was his entire gain?

7. Three pipes can fill a cistern in 12 hr., 15 hr., and 20 hr., respectively. How long will it take to fill the cistern: (a) If the three are used together?. (b) If the first and second are used? (c) If the first and third are used? (d) If the second and third are used?

8. At $1.68 per square yard, how much will it cost to lay a floor in a room 15 ft. by 12 ft.?

9. How much less would it cost to cover the floor with carpeting worth $1.35 per yard?

10. A contract for a railroad requires that the rails weigh 70 lb. to the yard. How many tons of rails will lay the road, which is 3 mi. long?

11. A room 30 ft. long, 24 ft. wide, and 12 ft. high is to be plastered at 35¢ per square yard. There are 4 doors 8 ft. by 4 ft., and 6 windows 9 ft. by 33 ft. Find the cost, deducting one half of the area of openings.

12. A rug 31 yd. by 21 yd. leaves an uncovered space 2 ft. wide all around the room. What is the floor area of the room? How many feet of picture molding must be bought for the room?

13. How many loads of earth were removed in digging a cellar, if the earth removed when spread evenly over a lot 60 ft. by 45 ft. raised the grade 3 in.?

14. 121 lb. of 60-cent tea were accidentally emptied into a chest containing 73 lb. of 40-cent tea. What is the mixture worth per pound?

15. How many panes of glass 2 ft. by 2 ft. must a schoolroom have, whose dimensions are 40 ft. by 24 ft., in order that the lighting surface may equal space?

the floor

16. A lot of land containing 1 A. is 360 ft. long. From one end is sold a lot 150 ft. long, and from the other end a lot 90 ft. long. What part of an acre is left ?

17. A furnace pipe is 24 ft. long and 223 in. in circumference. Allowing 1 in. for the seam, what were the dimensions of the piece of sheet iron from which it was made?

18. At $11 per yard, what is the cost of carpeting a room 23 ft. by 19 ft. with carpeting & yd. wide?

19. At a square foot, what will it cost to sod a lawn 75 ft. long and 40 ft. wide, if the cost of laying the sod is per square foot?

20. A certain city of 100,000 inhabitants covers an area of 12 sq. mi. How many people is this to the acre?

21. At 25 per cubic yard, find the cost of excavating a cellar 36 ft. long, 22 ft. wide, and 6 ft. deep, and of cementing the bottom at 15 per square yard.

22. $37 is of A's money and of B's money. much more than B has A?

How

23. A well 20 ft. deep and 4 ft. in diameter is half full of water. How many gallons?

24. What is the area over which a cow can graze if tethered to a stake by a rope 25 ft. long?

25. A pond 120 ft. in diameter gives what area for skating when frozen over?

26. What is the interest at 5% of $2400 for 110 da. ? 27. What is the gain per cent in buying collars at 75¢ a dozen and selling them at 3 for 25¢?

28. Find the area of a triangle whose base is 4 ft. 3 in. and whose altitude is 40 in.

29. Ed paid $24.75 for his bicycle and sold it for 32% less. How much did he receive for it?

30. Two farms were sold for $3000 each. On one 20% was gained, and on the other 20% was lost. Did the owner gain or lose by the transaction? How much?

31. A street mi. long and 3 rd. wide is paved with asphalt. How many square yards of paving?

32. Two trains leave Chicago at 10 o'clock in the morning. One travels east at the rate of 48 mi. an hour; the other travels west at the rate of 42 mi. an hour. How far apart are the trains at 20 min. of 3 in the afternoon?

33. What must a clothing dealer ask for goods which cost him $83 in order to make a profit of 20% ?

34. One pipe discharges 6 gal. per minute, and another discharges 5 gal. per minute. How long will it take to empty a tank whose capacity is 600 gal.?

35. If to a disinfecting solution is added 12 parts of water, what fraction represents the strength of the mixture?

36. On a plan drawn on the scale of in. to a foot, what is the area of a lot whose frontage is 33 in. and whose depth is 483 in.?

37. 7.7 is the product of four factors, three of which are 1, 3.08, and 2.5. What is the fourth?

38. Which covers the greater space, a tile 6 in. square, or a tile containing 6 sq. in.? How many times the smaller is the larger? What part of the larger is the smaller?

39. Mrs. Hovey bought two remnants of silk; one lacked 9 in. of being 2 yd., and the other 6 in. of being 12 yd. What was the total number of yards bought?

40. A heating apparatus is warranted to supply 30 cu. ft. of fresh air per minute for every person in the room. If the room is 30 ft. long, 25 ft. wide, and 12 ft. high, and contains 40 persons, how often must the air in the room be renewed?

41. How many 500-lb. bales of cotton can be harvested from a field of 168 A., if the average yield per acre is 240 lb. ?

42. An ice boat sails 18 mi. in 1 hr. 3 min. What is the rate per minute? How long does it take to go a

« ΠροηγούμενηΣυνέχεια »