Multiple choice

A dishonest shopkeeper claims to sell his goods at cost price, but uses a weight of 800 gm in place of the standard 1 kg weight. What is his gain per cent ?

  1. 25%

  2. 20%

  3. 15% 

  4. None of the above
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A Correct answer
Explanation

The shopkeeper uses 800g instead of 1000g. The gain is 200g on a cost of 800g. Gain percent = (200 / 800) * 100 = 25%.

AI explanation

Let the cost price of 1 gram of the goods be 1 rupee, so the cost price of the 800 grams actually provided is 800 rupees. The shopkeeper charges the customer the cost price of a full kilogram, receiving 1000 rupees. Using the gain percentage formula, gain is 1000 minus 800, which is 200 rupees. Therefore, the gain percentage is (200 divided by 800) multiplied by 100, resulting in a 25% gain.

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