Problem-Solving and Data AnalysisEasySimplest form of a ratio
Problem-Solving and Data Analysis practice question
In a class, the ratio of boys to girls is 18 : 24. What is this ratio in simplest form?
- A. 3 : 4Correct
- B. 4 : 3
- C. 3 : 7
- D. 2 : 3
Answer: A. 3 : 4
Divide both parts by their greatest common factor, 6: 18/6 = 3 and 24/6 = 4.
Why the other answers are wrong
- B. 4 : 3
- 4 : 3 reverses the order; boys come first, and there are fewer boys.
- C. 3 : 7
- 3 : 7 compares boys with the whole class (18 : 42), not with girls.
- D. 2 : 3
- 2 : 3 would be 16 : 24, not 18 : 24.
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