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Ratio, Rate, and Proportion Flashcards

6 cards from real EDPT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Ratio, Rate, and Proportion flashcards as text

  1. A car travels 180 miles in 3 hours. At the same rate, how far will it travel in 5 hours?

    Answer: 300 miles

    Rate = 180 ÷ 3 = 60 mph. Distance in 5 hours = 60 × 5 = 300 miles.

  2. A recipe calls for 2 cups of flour for every 3 cups of sugar. If you use 8 cups of flour, how many cups of sugar are needed?

    Answer: 12

    Set up the proportion: 2/3 = 8/x → x = (8 × 3) ÷ 2 = 24 ÷ 2 = 12 cups of sugar.

  3. If 5 workers can complete a job in 12 days, how many days will it take 10 workers to complete the same job (assuming constant work rate)?

    Answer: 6 days

    Total work = 5 × 12 = 60 worker-days. With 10 workers: 60 ÷ 10 = 6 days.

  4. A map has a scale of 1 inch = 25 miles. Two cities are 3.5 inches apart on the map. What is their actual distance?

    Answer: 87.5 miles

    Actual distance = 3.5 × 25 = 87.5 miles.

  5. The ratio of boys to girls in a class is 3:5. If there are 24 boys, how many students are in the class total?

    Answer: 64

    If 3 parts = 24 boys, then 1 part = 8. Girls = 5 × 8 = 40. Total = 24 + 40 = 64 students.

  6. A train covers 240 km at 80 km/h and then 180 km at 60 km/h. What is the total travel time?

    Answer: 6 hours

    Time₁ = 240 ÷ 80 = 3 hours. Time₂ = 180 ÷ 60 = 3 hours. Total = 3 + 3 = 6 hours.

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