Problem-Solving and Data AnalysisEasy–MediumUnit rate then scaling
Problem-Solving and Data Analysis practice question
A printer prints 500 pages in 8 minutes at a constant rate. How many pages does it print in 3 minutes?
Answer: 187.5 or 375/2
Rate: 500/8 = 62.5 pages per minute. In 3 minutes: 62.5 × 3 = 187.5.
Common wrong answers
- If you answered 1333
- 1,333 multiplies 500 by 8/3, inverting the ratio.
- If you answered 62.5
- 62.5 is the pages per ONE minute.
- If you answered 166.7
- 166.7 divides 500 by 3, ignoring the 8 minutes.
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