Question
If A:B:C = 3:5:7, then find the ratio of (A + 2C) : (4B
− C)Solution
ATQ,
Let A = 3k, B = 5k, and C = 7k Required ratio = (3k + 2 × 7k) : (4 × 5k − 7k) = (3k + 14k) : (20k − 7k) = 17k : 13k = 17 : 13
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