Ratios and Proportions Quiz
Test your knowledge of ratios and proportions. Please answer all questions to the best of your ability.
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1. What is the ratio of 8 to 12 in its simplest form?
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2:3
4:6
3:2
8:12
2. Select all pairs that represent equivalent ratios.
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3:4 and 6:8
2:5 and 4:10
5:2 and 10:4
1:3 and 2:5
3. Solve for x: If 4:x = 2:6, what is the value of x?
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4. Write the ratio 15 to 45 as a fraction in simplest form.
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5. If a recipe calls for 2 cups of sugar for every 5 cups of flour, how many cups of sugar are needed for 20 cups of flour?
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6. Which of the following statements about proportions is TRUE?
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A proportion is an equation that shows two ratios are equal.
A proportion is a comparison of two quantities using subtraction.
A proportion always has unequal ratios.
A proportion is the same as a percentage.
7. Fill in the blank: 9 is to 27 as 4 is to ____.
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8. Match the ratios to their simplest forms.
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Rows
Simplest Form
6:12
1:2
1:3
2:3
3:4
9:27
1:2
1:3
2:3
3:4
8:12
1:2
1:3
2:3
3:4
12:16
1:2
1:3
2:3
3:4
9. If a car travels 150 miles in 3 hours, what is the ratio of miles to hours?
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10. In your own words, explain why understanding proportions is important in everyday life.
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