Question
A 20 L solution contains 30% sugar. How much water
should be added to make the sugar 20% of the new solution?Solution
ATQ, Sugar in 20 L = 30% of 20 = 6 L After adding water, sugar remains 6 L. Let new volume = V. Given 6 is 20% of V: 6 = 0.20*V => V = 6/0.20 = 30 L Water added = 30 - 20 = 10 L
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