75 g of sugar solution has 30% sugar in it. Then, the quantity of sugar that should be added to the solution to make the quantity of the sugar 70% in the solution, is A. 125 g B. 100 g C. 120 g D. 130 g Answer Workspace Report Discuss Answer with explanation Answer: Option B Explanation Sugar in original solution = (75 x 30) / 100 = 22.5 g Let x g of sugar be mixed According to the question {(22.5 + p)/(75 + p)} x 100 = 70 ⇒ 2250 + 100p = 75 × 70 + 70p ⇒ 2250 + 100p = 5250 + 70p ⇒ 30p = 5250 – 2250= 3000 => p = 3000/30 = 100g Workspace
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