A merchant bought 100 items at a price of $10 each. He sold 70 items at $15 each and the rest at $5 each. What was his total profit?
Category: Math · Difficulty: expert
Hint: Calculate total revenue and subtract costs.
Answer
500
Explanation
Total cost = 100 * 10 = 1000. Revenue from 70 items = 70 * 15 = 1050, and from 30 items = 30 * 5 = 150. Total revenue = 1200, profit = 1200 - 1000 = 200.
This is a expert math riddle — one of the harder riddles here. The answer is 500.
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