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Lesson 10: Relate Customary and Metric Units — Practice Questions

  1. 1. A machine seals 150 envelopes per hour. At this rate, how many envelopes can it seal in 2 days? \n___ envelopes

  2. 2. A baker can decorate 4 cakes per hour. How many cakes can the baker decorate in 480 minutes?

    • A. 32
    • B. 120
    • C. 1920
    • D. 240
  3. 3. A pump moves water at 20 gallons per minute. How many liters will it pump in 3 hours? (Use the conversion 1 gallon = 3.785 liters) \n___ L

  4. 4. An assembly line produces 5 toys per minute. How many toys are produced in one full day (24 hours)?

    • A. 120
    • B. 300
    • C. 7200
    • D. 86400
  5. 5. A sprinter runs at a speed of 22 feet per second. What is this speed in miles per hour? (Use 1 mile = 5280 feet) \n___ mph

  6. 6. A package weighs 8 ounces. Using the conversion factor $1 \text{ oz} \approx 28.35 \text{ g}$, what is the approximate weight of the package in grams? The weight is ___ grams.

  7. 7. A suitcase has a mass of 10 kilograms. Using the conversion $1 \text{ kg} \approx 2.205 \text{ lb}$, what is the approximate weight of the suitcase in pounds?

    • A. 22.05 lb
    • B. 4.535 lb
    • C. 0.2205 lb
    • D. 220.5 lb
  8. 8. A shipment of grain has a mass of 5 metric tons. Using the conversion $1 \text{ t} \approx 1.102 \text{ T}$, what is the approximate weight of the shipment in short tons? The weight is ___ short tons.

  9. 9. A sample has a mass of 85.05 grams. Using the conversion $1 \text{ oz} \approx 28.35 \text{ g}$, what is the approximate weight of the sample in ounces? The weight is ___ ounces.

  10. 10. A person weighs 154.35 pounds. Using the conversion $1 \text{ kg} \approx 2.205 \text{ lb}$, what is the person's approximate mass in kilograms? The mass is ___ kg.