How much water must be mixed in 300 ml of sugar solution which contains 40% sugar by Weight, such that it becomes a 30% sugar solution?  Answers:
A) 50 ml	B) 75 ml	C) 90 ml	D) 100 ml	E) 120 ml
Total Quantity = 300 ml   Sugar by weight = 120 ml   Water= 180 ml   Let x be the amount of water added to the solution   Then 120/(300 + x)=30/100   =&gt;1200 = 900 + 3x   =&gt;x= 100 ml   ANSWER:100 ml
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How much water must be mixed in 300 ml of sugar solution which contains 40% sugar by Weight, such that it becomes a 30% sugar solution?