How many Kg of sugar must be added to 30 Kg of 2% solution of sugar and water to increase it to a 10% solution?
Solution: Amount of sugar in 30 Kg solution = (2/100 * 30) Kg = 0.6 Kg.
Let x Kg of sugar be added. Then, (0.6+x)/(30+x) = 10/100
60+100x = 300+10x
x = 240/90 = 8/3 = 2.6
why (0.6+x)/(30+x)= 10/100
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