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Answer»

Answer:

20:35:42

Step-by-step EXPLANATION:

As a:B is 4:7 then a = 4x and b = 7x.Now b:C is 5:6,so b/c = 5/6 which IMPLIES that c = 6b/5.So c = (6×7x)/5 = 42x/5.So a:b:c is = 20:35:42



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