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If k : l = 4 : 3 and l : m = 5 : 3, then find k : l : m ?

18 : 24 : 11
9 : 15 : 1
20 : 15 : 9
21 : 7 : 3

Correct Answer: 20 : 15 : 9

Explanation:

Given k : l = 4 : 3
l : m = 5 : 3

Then k : l : m = 20 : 15 : 9

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