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. Copyright © 2017 Lawrence Spector Questions or comments? E-mail: themathpage@yandex.com Private tutoring available. |