Find the initial quantity of coloured water in the given mixture ( in litres ).

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A mixture contains sugar solution and coloured water in the ratio 3 : 5.
If 16 litres of coloured water is added to the mixture, the ratio becomes 4 : 7.
Find the initial quantity of coloured water in the given mixture ( in litres ).

posted Dec 27, 2018

1408 liters

Let x be the initial amount.
İnitially it was 5 out of 8 and became 7 out of 11.
x*7/11-16=x*5/8
x=1408 l

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