If a:b = 2:3 and b:c = 4:5, what is a:c?

A8:15

B2:5

C6:15

D8:12

Explanation

a/c = (a/b) * (b/c) = (2/3) * (4/5) = 8/15 => a:c = 8:15.

Exam Relevance

Topic: Ratio and Proportion
Subtopic: Compound Ratio

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