Question
If x : y : z = 6 : 7 : 11, and (2x + 3z) = 180, then find the value of y.
Solution
Let x = ‘6a’ So, y = 6a × (7/6) = ‘7a’ And z = 6a × (11/6) = ‘11a’ ATQ; 6a × 2 + 11a × 3 = 180 Or, 12a + 33a = 180 So, 45a = 180 So, a = 4 So, required value = 7a = 28
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