Ratio problem solving

1. A recipe called for the ratio of sugar to flour to be 7:3. If you used 63 ounce of sugar, how many ounces of flour would you need to use? Solve by using equivalent ratios.

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2. Edward had beaten 24 levels in a video game. If the ratio of levels he had beaten to not beaten was 3:1, how many levels does the game have total? Use a tape diagram to solve.

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3. A parking lot has 117 spaces total. If 36 of the spaces have cars in them, what is the ratio of empty spaces to filled spaces?

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4. If 30 kids in the class like grape juice, how many kids like pineapple juice? Use the tape diagram to answer.

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5. At the carnival, the ratio of people who won the ring toss game to lost it was 8 : 5. If 24 people won, how many people would have lost?

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6. In a bag of Jolly Ranchers, the ratio of blue to red is 3 to 4. If I have a TOTAL of 56 Jolly Ranchers, how many of them are blue?

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7. The ratio of boys to girls in history class is 4 to 5. How many girls are in the class if there are 12 boys in the class?

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8. A factory produces 6 motorcycles in 9 hours. Find how many hours it takes to produce 16 motorcycles at this rate.

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9. A recipe that will make 3 pies calls for 7 cups of flour. Find how many pies can be made with 28 cups of flour.

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10. If Theresa has 5 quarters and Jason has 7 quarters, what is the ratio of the number of Jason's quarters to the total number of quarters?

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