Correct Answer - Option 4 : 160%
Given:
On selling 50 pairs shopkeeper gains the cost price of 80 pairs.
Formula:
Profit percent = Profit/cost price × 100
Calculation:
Let the cost price of 1 pair be x
Cost price of 80 pairs = 80 × x = 80x
Cost price of 50 pairs = 50 × x = 50x
Profit on 50 pairs = 80x
Profit percent = 80x/50x × 100
⇒ Profit percent = 8/5 × 100
⇒ Profit percent = 160
∴ The profit on selling 50 such pairs is 160%