A dealer sells his goods at a profit of 20%, but uses a weight of 800 g in place of a kg weight. Find his real gain percentage.
Answer & explanation
Correct answer: option 3
Let the Cost Price of 1 gm be 1.
Dealer's cost price = 800
Dealer's selling price = 1200
Gain = (1200 - 800) = 400.
Therefore, gain percentage = \(\frac{400}{800}\) × 100 = 50%.
∴ The answer is 50%.