A dishonest shopkeeper sells his grocery at celling price and earns a...
By selling 25 Kg shopkeeper gains 20%
Total cost price = 25 × 20
Total cost price = Rs. 500
The profit obtained on selling 25 Kg = 20% of 500
⇒ The profit obtained on selling 25 kg = Rs. 100
That means profit in weight corresponding to profit in money = Profit / cost price
⇒ Profit in weight = 100 / 20
⇒ Profit in terms of weight = 5 Kg
That is, out of 25 Kg weight, the shopkeeper actually uses only 20 Kg.
The loss per kilogram = 5 / 25
⇒ Loss of weight per kilogram = 1 / 5 kg
⇒ Loss of weight per kilogram = 200g
∴ The weight shopkeeper reduces to get a 20% gain on selling 25kg is 200g per kilogram weight.
Hence, the correct option is (C).