Question
In a mixture, the amount of milk is (x+30) L and water
is 40 L. If 10 L milk and 10 L water are added, the ratio of milk to water becomes 7:5. Find x% of the initial water.Solution
ATQ, So, we can say, (x+30+10)/(40+10) = 7/5 Or, (x+40)/50 = 7/5 Or, 5(x+40) = 50×7 = 350 Or, 5x + 200 = 350 Or, 5x = 150 → x = 150/5 = 30 Required value = 40×30/100 = 12 L
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