1) A recipe uses a half kg of cocoa butter and 3/4 kg of sugar. What is the total weight? 2) A customer buys 2/3 of a 120-bar batch. If 1/4 of those are nut-free, how many nut-free bars did they get? 3) If 15 bars need 300g of milk powder, how many grams are needed for 40 bars? 4) 4 workers take 6 hours to pack the chocolate. How many hours would 6 workers take? 5) 3 out of every 50 chocolates have wrinkled wrappers. What is the percentage of defective chocolates?

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