A dishonest dealer professes to sell his goods at the cost price but uses a…
2023
A dishonest dealer professes to sell his goods at the cost price but uses a weight of 900 gm instead of 1 kg. Find his real gain percent.
- A.
11.11%
- B.
20%
- C.
30%
- D.
none
Attempted by 92 students.
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Correct answer: A
Key idea: the dealer gives 900 g but charges for 1000 g, so he receives the price of 1000 g while giving the cost of 900 g.
Assume the cost price of 1 kg = 100 units (convenient choice).
Actual cost of 900 g = 90 units, while he charges for 1 kg = 100 units.
Profit = 100 − 90 = 10 units.
Gain percent = (10/90) × 100 = 1000/90 ≈ 11.11%.
Answer: 11.11% (approximately).