If A:B = 2:3 and B:C = 4:5, what is A:B:C in its simplest form?
Correct answer: B. 8:12:15
- A. 6:8:10
- B. 8:12:15
- C. 8:10:15
- D. 12:8:15
Explanation
Make the value of B common by using 12. The first ratio becomes 8:12 and the second becomes 12:15, giving A:B:C = 8:12:15.
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About Basic Mathematics: Fractions, Percentages, Ratios and Indices
Work with fractions includes simplification, conversion, operations and comparison, while percentages cover increases, decreases, profit, loss and reverse percentage calculations. Ratios and proportions describe relationships between quantities, and indices cover laws of exponents, zero and negative powers, fractional indices, and scientific notation.
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