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  • If a: b = 3:4, b:c = 7:9, c:d = 5:7, find a:d?
Question 1:
If a: b = 3:4, b:c = 7:9, c:d = 5:7,
find a:d?
A. 5:12
Feedback a/d = (3/4)*(7/9)*(5/7) => 5/12
B. 7:12
C. 3:11
D. 5:11

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