Question
A container contains 150 lit of pure milk and P liters
of water. Ratio of 25% of mixture to the initial quantity of water is 5 : 8 and when Q liters of water is added to it ratio of total mixture to water becomes 7 : 4. Then find the value of P + Q.Solution
(150 + P)/4P = 5/8
1200 + 8P = 20P
P = 100 liters
And, (100 + Q)/(250 + Q) = 4/7
700 + 7Q = 1000 + 4Q
3Q = 300
Q= 100 liters
Required sum = 200
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