Question

In a mixture of 90 litres, the ratio of milk and water is 2:1.How much water is to be added to make the ratio 1:2?

Answer 1

milk=90×2/3=60 ltr,

water=30 ltr,

60/(30+x)=1/2,

30+x=120,

x=120-30=90

Answer 2

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