If A:B = 3:4, B:C = 8:9, and C:D = 15:16, find A:D.

Topic: Ratio and Proportion
Subtopic: Compound Ratio

A3 : 8

B5 : 8

C5 : 16

D9 : 16

Explanation

A/D = (A/B) * (B/C) * (C/D) = (3/4) * (8/9) * (15/16) = (3 * 8 * 15) / (4 * 9 * 16) = 360 / 576 = 5 / 8.

Exam Relevance

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