RATIO AND PROPORTION 2 PROBLEMS (2) Return to the Lesson. To see the answer, pass your mouse over the colored area. "Out of": The ratio Part : Whole. 12. In a class, 3 out of 5 students are girls; there are 30 students; how 13. In a survey, 7 out of 8 people answered No; 168 people were 14. In the sophomore class, there are 630 students. 2 out of 3 have a 15. A company employs 450 people, and 7 out of 10 are women. How Percent: Ratio to 100 16. What percent of 100 is each of these?
17. a) Why this is a proportion? 11 : 44 = 25 : 100. 11 is the fourth part of 44, and 25 is the fourth part of 100. 15. a) 11 out of 44 is what percent? 25% 15. b) Why this is a proportion? 9 : 50 = 18 : 100. Both 9 and 50 have been multiplied by 2. 15. a) 9 is what percent of 50? 18% 15. c) Why this is a proportion? 8 : 200 = 4 : 100. Both 8 and 200 have been divided by 2. 15. a) 8 is what percent of 200? 4% 18. Complete each proportion. In each case, the 1st term is what
These problems continue in Lesson 28. Continue on to the next section. or Return to the previous section. Please make a donation to keep TheMathPage online. Copyright © 2016 Lawrence Spector Questions or comments? E-mail: themathpage@yandex.com |