Correct Answer - Option 3 : 25%
Given:
He sells goods at loss of 25%.
He used weight of 600 grams instead of 1000 grams at the time of selling.
Formula used :
Profit % = {(Selling price – Cost price )/cost price} × 100
Calculations:
Let the Cost price of 1000 grams of goods be ₹ 100 ----(1)
As he promises to sell his goods at a loss of 25 %
The selling price of 1000 grams = ₹ 75
But, as he weighs only 600 grams,
⇒ he takes ₹ 75 for 600 grams
From equation (1)
We can get a cost price of 600 grams = ₹ 60
⇒ {(75 – 60) / 60} × 100
⇒ Profit % = 25
∴ The actual profit percentage of the shopkeeper is 25%.