Multiple choice

A shopkeeper sells his goods at a loss of 20\% but uses a false weight of 1200 gram at place of 1.5 kg. Find his overall profit/loss percent.

  1. 5% profit

  2. 10% loss

  3. 10% profit

  4. No profit/no loss
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The shopkeeper sells at 20% loss (SP = 0.8 × CP) but gives only 1200g instead of 1500g. For every transaction, customer pays for 1500g but receives 1200g. Revenue = 0.8 × CP of 1500g = 1.2 CP units. Cost = CP of 1200g = 1.2 CP units. Since revenue equals cost, there's no profit or loss — the 20% price discount exactly offsets the 20% quantity cheating (1200/1500 = 0.8).

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