if A/B = 2/3 and B/C = 5/7 then A:B:C is =

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if A/B = 2/3 and B/C = 5/7 then A:B:C is =

A2:3:5

B10:15:21

C10:15:17

D2:15:21

Answer:

B. 10:15:21

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