A shopkeeper sells rice at cost price but uses a 900 g weight instead of 1 kg. What is his profit percent?
A. 9%
B. \(11\frac{1}{9}\)%
C. 12.5%
D. 10%
A. 9%
B. \(11\frac{1}{9}\)%
C. 12.5%
D. 10%
Best answer
Answer: B. \(11\frac{1}{9}\)%
Answer: (B) \(11\frac{1}{9}\)%
Shortcut: profit% = \(\frac{\text{error}}{\text{true weight} - \text{error}} \times 100 = \frac{100}{900} \times 100 = 11\tfrac{1}{9}\%\).
He gives 900 g but charges for 1000 g.
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