Multiple choice general knowledge math & puzzles

A man went into a restaurant and ate a meal costing Rs. 105, giving the accountant a Rs. 500 note. He kept the change, came back a few minutes later and had some food packed for his friend. He gave the accountant a Rs. 100 note and received Rs. 20 in change. Later the bank told the accountant that both the Rs. 500 and the Rs. 100 notes were counterfeit. How much money did the restaurant lose? Ignore the profit of the food restaurant.

  1. 600

  2. 500

  3. 415

  4. 495
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A Correct answer
Explanation

The restaurant lost the value of the food provided and the real cash given back as change. First transaction: 105 (food) + 395 (change) = 500. Second transaction: 80 (food) + 20 (change) = 100. Total loss = 500 + 100 = 600. Since we ignore profit, the cost of food is treated as a direct loss.

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