A dishonest dealer professes to sell his goods at the cost price but uses a weight of 900 gm for one kg weight. Find his gain percent.
Answer & explanation
Correct answer: option 3
Percentage gain = \(\frac{( SP - CP ) }{CP}\) × 100%
Cost price : Selling price
900 : 1000
Percentage gain = \(\frac{( 1000 - 900 ) }{900}\) × 100%
= \(\frac{( 100 ) }{900}\) × 100%
= 11\(\frac{( 1) }{9}\)%
The correct answer is Option (3) → $11 \frac{1}{9}$%