- A4 : 6 : 7
- B2 : 3 : 7
- C2 : 6 : 7
- D4 : 6 : 14
Step-by-Step Solution
Make b common. a : b = 2 : 3 = 4 : 6 and b : c = 6 : 7. So a : b : c = 4 : 6 : 7.
Answer: A) 4 : 6 : 7
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