The ratio of milk and water in a mixture is 2 : 1. How much part of the mixture should be replaced by water so that the ratio of milk and water becomes 5 : 3.
Answer & explanation
Correct answer: option 4
Milk Water Total
initial Ratio 2 : 1 = 3
Ratio after drawn off 2 : 1 = 3 ........(i)
Ratio after water added 5 : 3 = 8 ........(ii)
In (i) and (ii) milk should be same because in these steps only water is added. Therefore, (i) × 5 & (ii) × 2
Milk Water Total
Ratio after drawn off 10 : 5 = 15
Ratio after water added 10 : 6 = 16
+ 1 16 (Final/initial Qty.)
Mixture to be removed = \(\frac{1}{16}\)