ICSE Class 8 Answered
A person preparing a medicine wants to convert 15% alcohol solution into32% alcohol solution Find how much pure alcohol he should Mix in 400mL of 15% Alcohol Solution To obtaim required solution
Asked by kumarinirmala180 | 10 Sep, 2019, 12:12: PM
Expert Answer
Let the amount of pure alcohol he should mix in 400 ml of 15% alcohol = x
15% of 400 + x = 32% of (400 + x)
→ (15/100) × 400 + x = (32/100) × (400 + x)
→ 6000 + 100x = 12800 + 32x
→ 68x = 6800
→ x = 100 ml
Answered by Yasmeen Khan | 11 Sep, 2019, 11:51: AM
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