Alfred buys an old scooter for Rs. 4,700 and spends Rs. 800 on repairs. If he sells the scooter for Rs. 5,800, his gain percentage is:

Explanation

Actual cost = ₹4,700 + ₹800 repair = ₹5,500. Profit = ₹5,800 − ₹5,500 = ₹300.

Profit % = 300/5,500 × 100 = 60/11 = 5 5/11%. The repair cost is the trap here.