Problem-Solving and Data AnalysisEasyReading a two-way table row
Problem-Solving and Data Analysis practice question
In a survey, 30 people said they walk to work. Of those 30, 12 own a dog. How many of the people who walk to work do not own a dog?
Answer: 18
30 − 12 = 18.
Common wrong answers
- If you answered 12
- 12 is the number who own a dog.
- If you answered 42
- 42 adds the two numbers.
- If you answered 2.5
- 2.5 is 30 ÷ 12.
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