Question: A mixture of two types of tea costs $5 per kg and $7 per kg. If a mixture of 10 kg is made and sold for $6 per kg, what is the profit or loss?
Options:
Correct Answer: $5
Solution:
Cost of mixture = 10 kg * $6 = $60. Selling price = 10 kg * $6 = $60. Profit = $60 - $60 = $0.