Question
If x:y = 5:7 and x + y = 408, then find the value of (y
- x).Solution
Let 'x' and 'y' be '5a' and '7a', respectively. ATQ; 5a + 7a = 408 Or, 12a = 408 Or, a = 34 So, (y - x) = (7a - 5a) = 2a = 2 X 34 = 68
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