|
RATIO AND PROPORTION 2 PROBLEMS (3) To see the answer, pass your mouse over the colored area. 19. Mixed ratio. Express each of the following ratios. How many 17. a) 35 to 10. 35 is three and a half times 10. 19. b) 20 to 8. 20 is two and a half times 8. 19. c) 22 to 4. 22 is five and a half times 4. 19. d) 5 to 2. 5 is two and a half times 2. 19. e) 7 to 2. 7 is three and a half times 2. 19. f) 15 to 2. 15 is seven and a half times 2. 19. g) 18 to 12. 18 is one and a half times 12. 19. h) 50 to 40 50 is one and a quarter times 40. 19. i) 9 to 4. 9 is two and a quarter times 4. 19. j) 21 to 4. 21 is five and a quarter times 4. 19. k) 14 to 6. 14 is two and a third times 6. 20. Percent: Ratio to 100. Each percent expresses what ratio? 20. a) 200% Two times, or twice as much. How much is 200% of 12? 24 20. b) 250% Two and a half times. How much is 250% of 12? 30 20. c) 350% Three and a half times. How much is 350% of 10? 35 20. d) 425% Four and a quarter times. How much is 425% of 8? 34
21. The ratio of blue marbles to red was 7 to 2. There were 50 red Express each of the following in the language of ratio. Use a complete sentence. 22. Carl pays $500 a month for rent; he earns $2500 a month. A fifth of Carl's income goes for rent. 23. Joanne earned $2000; she paid $400 in taxes. A fifth of what Joanne earned went for taxes. 24. In a class of 30 pupils, there were 10 A's. A third of the class got A. 25. Out of 120 people surveyed, 20 responded No. A sixth of those surveyed responded No. 26. The population of Eastville is 60,000, while the population of The population of Eastville is three times the population of Westville. 27. Over the summer, John saved $1000, while Bob has saved only Over the summer, John saved ten times more than Bob. 28. At a party, there were 24 girls and 4 boys. There were six times as many girls as boys. 29. In a class of 28 students, there were 21 A's. Three fourths of the students got A. 30. In a survey of 60 people, 40 answered Yes. Two thirds of those surveyed answered Yes. 31. In a class of 40 pupils, 25 got a B. Five eighths of the class got B. 32. Of the 2100 students who voted, 1400 voted for Harrison. Two thirds of the people voted for Harrison. 33. This month's bill is $50, while last month's was only $20. This month's bill is two and half times last month's. 34. Sabina makes $36,000 a year, while Clara makes only $24,000. Sabina makes one and a half times what Clara makes. 35. In the past thirty years, the population grew from 20,000 to In the past thirty years, the population grew three and a half times. Continue on to the next Lesson. or Return to the previous section.
Please make a donation to keep TheMathPage online. Copyright © 2001-2007 Lawrence Spector Questions or comments? E-mail: themathpage@nyc.rr.com |