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Contemporary's GED Mathematics

Ratio and Proportion

# Chapter Review Quiz

## Directions:

Choose the best answer to each problem. You may refer to pages 137–148 in Contemporary’s GED Mathematics if you need additional help. You may NOT use a calculator for problems 1–6. When you have finished the quiz, click on Submit Answers to receive feedback and results. You may also choose to e-mail your results to your instructor.

 1 Which of the following ratios is equal to the ratio 8:22? A) 4:11 B) 22:36 C) 2:16 D) 11:25 E) 22:8 2 Simplify the ratio 1.2:6. A) 3:4 B) 2:5 C) 1:5 D) 1:4 E) 1:3 3 On a quiz in her driver education class, Kim got 4 questions wrong and 16 questions right. What was the ratio of the number of questions Kim got right to the total number of questions on the quiz? A) 1:5 B) 1:4 C) 4:1 D) 4:5 E) 5:4 4 Solve for n in n/3 = 7/10. A) 3.3 B) 2.1 C) 1.3 D) 0.7 E) 0.48 5 Which of the following represents the two cross products in the proportion 9:15 = 12:20? A) 9 x 20 = 15 x 12 B) 9 x 15 = 12 x 20 C) 9 x 12 = 15 x 20 D) 9 x 9 = 12 x 12 E) 15/15 = 12/12 6 Which of the following represents a solution to 5/9 = 8/x? A) x = (8 x 9)/5 B) x = 5/(8 x 9) C) x = (5 x 9)/8 D) x = (5 x 8)/9 E) x = 8/(5 x 9)

You may use a calculator for problems 7–10.

 7 St. Louis and Kansas City are 253 miles apart. To the nearest tenth of an inch, how far apart are the two cities on a map with a scale of 1 inch = 30 miles? A) 2.5 inches B) 4.3 inches C) 6.1 inches D) 7.2 inches E) 8.4 inches 8 For every 5 regular tickets that were sold for a matinee movie, 1 senior discount ticket was sold. All together 342 people bought tickets for the movie. How many senior discount tickets were sold? A) 48 tickets B) 57 tickets C) 69 tickets D) 273 tickets E) 285 tickets 9 For every dollar that the Vega family takes in at their luncheonette, they spend \$0.40 in rent. The Vegas pay \$2,580 a month for rent for the luncheonette. How much money do they take in in a year? A) \$10,320 B) \$30,960 C) \$46,440 D) \$77,400 E) \$103,200 10 In a factory that makes plastic containers, an average of 3 out of every 1,000 containers has to be discarded because of some flaw. In a week when the factory has produced 54,216 containers, approximately how many containers had to be discarded? A) 50 to 100 B) 100 to 150 C) 150 to 200 D) 200 to 250 E) 250 to 300