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If 15 workers can build a wall in a day, the ratio of workers to the wall is best described as a comparison of ____ quantities.

Class 6Ratio and ProportionRatio and Proportion
  • Adifferent kinds of
  • Bthe same kind of
  • Cequal
  • Dnegative

Step-by-Step Solution

Workers and a wall are different kinds of quantities, so this is a rate, not a true ratio. A proper ratio compares quantities of the same kind in the same unit.
Answer: A) different kinds of

Key idea: What a ratio means

The ratio 2 : 3 says: for every 2 of one thing, there are 3 of another. In a fruit basket of 2 apples and 3 oranges, the ratio of apples to oranges is 2 : 3. **Order matters** — the ratio of oranges to apples in the same basket is 3 : 2. The two quantities must be in the same unit (you can't ratio apples to kilograms unless you convert).

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