Question 23
In a mixture of 50 liters, milk and water are in the ratio of 3:2. How much water should be added to make the ratio of the two equal?
Solution
In a mixture of 50 liters, milk and water are in the ratio of 3:2.
Quantitiy of milk = $$\frac{3}{5}\times 50 = 30$$
Quantitiy of water = $$\frac{2}{5}\times 20 = 20$$
To make the mixture equal, let x be water added
$$\frac{30}{20+x}= \frac{1}{1}$$
$$30=20+x$$
$$x = 10 ltrs$$
Option C is correct.
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