11. 37% of a shipment of peaches were spoiled. What per cent of the peaches were good? 12. Using common fractions instead of decimals, find: a. 50% of $124 b. 25% of 36 c. 75% of 24 d. 331% of 999 e. 663 % of 42 f. 831% of 30 g. 16% of 48 bushels h. 142% of 49 feet i. 12% of 30 inches j. 37% of 64 days. k. 871% of 72 pounds 7. 81% of 132 square miles m. 5% of $200,000 p. 371% of 56 minutes q. 163% of 180 grains r. 121% of 64 miles 13. 5 cents are 121% of what sum? 14. Frank paid 163% of his money for a book that cost $.20. How much money had he? 15. Arthur earned $1.60 and paid 75% of it for a football. How much had he left? 16. Wallace earned a sum of money, paid 871% of it for a suit of clothes, and had $2 left. a. $2 is what per cent of the money which he earned? b. How much did he earn? 17. A farmer raised a crop of potatoes, sold 662 % of them, and had 200 bushels left. a. 200 bushels were what per cent of the crop? b. How many bushels were raised? c. How many bushels were sold? 18. One morning Lucy cut a basket of roses; 25% of them were pink, 331% yellow, 16% red, and the rest white. a. What per cent of the roses were not white? b. What per cent were white ? c. If there were 15 white roses, how many roses did Lucy cut? d. How many were yellow? e. How many were pink? f. How many were red? 19. A wholesale grocer bought a carload of flour. He sold 121% of it to A, 30% to B, 371% to C, and the remainder, which was 48 barrels, to D. a. What per cent of the flour did he sell to D? b. How many barrels of flour did the carload contain? 20. A and B hired a horse. B paid 66% of the expense and A the remainder, which was $1.50. What was the entire expense? 21. Three coal dealers furnished the coal for the schools of a city. The first furnished 50% of it, the second 1400 tons, and the third 162% of it. a. What per cent of the coal did the second dealer furnish? b. How many tons did all furnish? C. How many tons did the first furnish? 22. A man bought a lot and built a house on it. The lot cost $800, which was 50% of the cost of the house. did both cost? 23. How much of a farm is cultivated. What per cent of it is uncultivated? 24. A pole stands in a pond of water so that of the pole is in the mud, and in the water. of the length of the pole is above the water? 25. 25% of 60 added to 3 of 60 equals what? of the length What per cent 26. Edward solved 16 problems and 933% of them were How many were incorrect? correct. 27. 50% of 80% of anything is what per cent of it? 28. 80% of 50% of anything is what per cent of it? 29. 100% of anything added to 25% of it equals what per cent of it? 30. A man had a sum of money and gained a sum equal to 40% of what he had at first. He then had what per cent of the first sum? 31. 20% more than $5 is what per cent of $5? 32. 20% more than $5 is how many dollars? 33. 50% more than $8 is how many dollars? 34. $250 is 125% of what sum? 35. $250 is 25% more than what sum? 36. A colt worth $100 increased 25% in value in eight months. How much was it then worth? 37. A liveryman bought a horse for $200. Its value decreased 50% in one year. What was it then worth? 38. What number, increased by 50% of itself, equals 300? 262. Written 1. Find: a. 121% of 896 bu. b. 66% of 927 T. c. 87% of 240 gal. d. 163% of 636 qt. 2. 39.40 is 16% of what? e. 1% of $15,000 f. 5% of 15,000 3. 3.27 is what per cent of 8.72? 4. 8.72 is what per cent of 3.27? 5. 3121 is 621% of a certain number. What is 871% of the same number? 6. Express decimally, %, %, %, }, } %, }, } %, 2, 2%, §%, 10% %, 5%. 7. A floor is 16 ft. square. What per cent of it may be covered by a rug that is 3 yd. long and 2 yd. wide? 8. A man paid $175 for a horse, $125 for a wagon, and $25 for a harness. What per cent of the entire cost was the cost of each? 9. From a field containing 40 A., a rectangular piece 40 rd. long and 20 rd. wide was sold. What per cent of the field remained? 10. A man withdrew 35% of his deposits from the bank, leaving $3250 in the bank. How many dollars did he withdraw? 11. Robert attended school 86 days during a term and was marked 955% in attendance. How many days were there in the term? 12. A piece of cloth shrank 4% in sponging, after which it contained 48 yd. How many yards did the piece contain before it was sponged? 13. A telephone was placed in my house on the 20th day of October, 1907. Beginning with that day, I had the use of the telephone what per cent of the year 1907 ? 14. A telephone company increased its charge from $30 a year to $36 a year. What was the rate per cent of increase? 15. A depositor withdrew 40% of his balance at the bank, and bought a piece of furniture for $72, which was 12% of the sum withdrawn. a. What was his balance before withdrawing? b. What per cent of it did he pay for furniture? c. How many dollars of his withdrawal remained unused? 16. My city tax bill amounts to $82.60 this year. If I do not pay it before Nov. 15, two per cent will be added to the amount of the bill. What must I pay if I wait till Nov. 16? 17. I obtained a 5% reduction by paying my semi-annual water bill before the 15th of July. The bill, after being reduced, was $2.375. What was it at first? How much did I have to pay? 18. The population of a city has increased 12% in the last three years. It is now 112,000. What was it three years ago? 19. The cost of living was estimated to be 40% greater in 1907 than in 1897. a. Assuming this estimate to be correct, how much money was necessary to support in 1907 such a family as was supported for $1250 in 1897 ? b. A workingman's wages of $15 a week in 1897 were equivalent to what sum per week in 1907? c. A salary of $1820 in 1907 was equal to what in 1897 ? 20. The daily sales of a department store last year averaged $8262, which was 2% greater than the daily average for the year before. What was the daily average for the year before? PROFIT AND LOSS 263. When property is sold for more or less than it cost, the gain or loss is always computed as a certain per cent of the cost. Each of the following expressions, when used in a problem, means that the profit or gain is 10% of the cost: At a profit of 10%; at 10% gain; at 10% above cost; at an advance of 10%. 264. Oral 1. A book that cost $5 was sold at a gain of 25%. What was the gain? Which term of relation (factor or product) is to be found? |