Multiple choice

A sweet-seller declares that he sells sweets at the cost price. However, he uses a weight of 800 g instead of 1 kg. What is his percentage profit?

  1. 15%

  2. 25%

  3. 20%

  4. 18%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The seller uses 800g instead of 1000g. The profit is on the cost of 800g. Profit = 200g. Percentage profit = (Profit / Cost) * 100 = (200 / 800) * 100 = 25%.

AI explanation

Using the faulty weight profit formula, profit percentage equals error divided by true weight minus error, all multiplied by 100. The error is 1000 minus 800, which is 200 grams, and the denominator is 1000 minus 200, which is 800. The profit percentage is 200 divided by 800 multiplied by 100, resulting in 25 percent.

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