Question
A 36 litre mixture of milk and water is in the ratio
5:1. How much water must be added to make the ratio 3:1?Solution
ATQ, Total mixture = 36 litres Milk : Water = 5 : 1 Milk = 36 x 5/6 = 30 litres Water = 36 x 1/6 = 6 litres Add x litres water. Then: 30 / (6 + x) = 3/1 30 = 3(6 + x) 30 = 18 + 3x 3x = 12 x = 4
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