4-5. In a distillation column for a feed of1000 kg the output is 80% of the feed and remaining 20% is waste. The feed contains 20% of Acetone and rest Water. The product contains 20% of Acetone and 40% of Water.

• A. How much Acetone is there in waste?
• B. 20 kg
• C. 40 kg
• D. 60 kg
• E. 80 kg