If a:b = 3:5 and b:c = 10:9, find a:b:c.

A3 : 5 : 9

B6 : 10 : 9

C6 : 10 : 15

D9 : 15 : 10

Explanation

Multiply a:b by 2 to equate b: a:b = 6:10. So a:b:c = 6 : 10 : 9.

Exam Relevance

Topic: Ratio and Proportion
Subtopic: Ratio Combination

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