Question : If a : b : c = 2 : 3 : 7, then what is 2a : 3b : 7c?
Option 1: 4 : 9 : 49
Option 2: 5 : 10 : 52
Option 3: 6 : 10 : 49
Option 4: 6 : 10 : 47
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Correct Answer: 4 : 9 : 49
Solution : Given: a : b : c = 2 : 3 : 7 Take a = 2, b = 3, and c = 7 So, 2a : 3b : 7c = 2 × 2 : 3 × 3 : 7 × 7 = 4 : 9 : 49 Hence, the correct answer is 4 : 9 : 49.
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