REVIEW WORK WRITTEN EXERCISES 207. 1. Reduce 280 rd. to inches. 2. Reduce 300 pt. to gallons. 3. Reduce 267 pt. to bushels, quarts, and pints. 7. Reduce 6600 sec. to hours and minutes. 10. Divide 76 yd. 1 in. by 17. 11. A butcher cuts 30 lb. of beef into roasts weighing 7 lb. 8 oz. each. How many roasts does he make? 12. A hall 20 ft. by 30 ft. is paved with tiles 4 in. by 16 in. How many tiles are used? 13. A dairyman delivered 41 gal. of cream at 15¢ a pint. What did it bring? 14. A market gardener packed 3 bu. of cherries in quart boxes. How many boxes did he use? 15. A teamster feeds to each horse 9 qt. of oats a day. How many bushels must he lay in to supply a four-horse team 3 days? 16. If you sleep 8 hours each night, how many days in duration do you sleep in the month of September? 17. There are 39 children and one teacher in a schoolroom whose dimensions are 30 ft. long, 20 ft. wide, and 12 ft. high. How much floor space does this allow for each person? How many cubic feet of space? 18. A family consumes 49 lb. of meat in 2 wk. Allowing lb. a day for each member, how many were there in the family? 19. A man bought a rectangular field 20 rd. by 80 rd. How many acres did it contain? What is the cost of inclosing it with a wire fence at 60% a rod? 20. If barbed wire runs a rod to a pound, and the fence around this field (Example 19) is 5 strands high, how many feet of wire are used in fencing it? How many pounds? 21. How many acres in a square field 40 rd. on a side? How many rods of woven wire fencing will be required to inclose it? 22. At the rate of 300 lb. an acre, how many tons of fertilizer will be required for a field 40 rd. by 60 rd.? 23. If a wheel is 7 ft. 4 in. in circumference, how many times will it turn in going of a mile? 24. A dealer has a coal bin 15 ft. long, 12 ft. wide, and 8 ft. high. How many tons of coal does it hold, allowing 35 cu. ft. to the ton? 25. An empty freight car weighs 15 tons. Loaded with wheat it weighs 33 tons. How many bushels of wheat does it contain? 26. A cedar block is 12 in. square at the end, and 10 ft. long. What is its weight, allowing 38 lb. to the cubic foot? 27. Florida oranges are usually shipped in boxes 12 in. by 12 in. by 26ğ in. How many cubic inches more than a bushel does such a box contain? 208. 1. The picture represents a cotton field in picking time. If the field is 80 rd. by 100 rd., and averages 1200 lb. of seed cotton to the acre, what is the total yield in seed cotton? (The product is called seed cotton until it is ginned; then it is called lint.) 2. If each picker averages 150 lb. a day, how many laborers are needed to pick this cotton in 80 working days? 3. How many bales of 500 lb. each (lint) will this make? (Three pounds of seed cotton yield on an average 1 pound of lint and 2 pounds of seed.) 4. Find the cost of picking at 50 per 100 lb. (seed cotton). 5. At 10 a pound (lint), what will this crop bring? 6. If the cost of planting, cultivating, picking, ginning, and marketing the crop was $900, and storage and insurance 50 a bale, what are the net profits of the planter? How much per acre? 7. How many tons of seed come from this crop? What is the value of the seed at $12.50 a ton? 8. In a certain year, Texas produced 2,446,000 bales of cotton; Georgia, 1,405,000 bales; Mississippi, 1,385,000 bales; Alabama, 1,040,000 bales; Arkansas, 855,000 bales; South Carolina, 845,000 bales; and Louisiana, 832,000 bales. What was the total value of this cotton at 10 cents a pound, counting 500 lb. to the bale? 9. In a certain year, 23,000,000 American spindles used 3,910,000 bales of cotton, averaging 500 lb. each. What was the average number of pounds to the spindle? 10. This picture represents vessels at a wharf, ready to load with cotton. If one of the vessels takes on 3000 bales, averaging 492 lb. to the bale, how many tons will its cargo weigh? 11. In fifty years the number of bales produced annually in this country increased from 2,930,000 bales to 10,124,000 bales. What was the average annual increase? 12. In a certain year the total cotton crop of the United States was 10,002,000 bales, of which 6,032,000 bales were exported. How many bales were consumed in this country? 13. What did it cost to compress this exported cotton at 40 cents a bale? 14. In a certain year southern mills had 8,210,000 spindles. If these mills took that year 2,140,000 bales, aggregating 1,067,300,000 lb., what was the average number of pounds to a spindle? 15. A Carolina mill consumes each working day 10 bales of 500 lb. each. Allowing 9 days for repairs and holidays, how many pounds does it consume in a common year? If each spindle consumes 125 lb. a year, what was the number of spindles in the mill? 16. In a recent year southern mills consumed 2,140,000 bales, while northern mills consumed 2,029,000 bales. At $50 a bale, what was the difference in value between cotton taken by southern and northern mills? 17. What was the freight on the cotton taken by northern mills that year, if the bales averaged 489 lb. each, and the average freight rate was 55 per hundred pounds? 18. North Carolina manufactures a larger proportion of its cotton crop than any other cotton-growing state. In a certain year it consumed 602,400 bales, which was of the crop. How many bales were produced in North Carolina that year? 19. If the raw material costs a spinner 10¢ a pound net, and he sells his yarns at 16 a pound, how many pounds must he manufacture in a month in order to pay running expenses of $5220? |