A man buys an old scooter for ₹6,600 and spends ₹900 on its repairs. If he sells the scooter for ₹9,000, then what is his gain percentage?

Correct option is D

Given:

Cost Price (CP) of the old scooter = ₹6600

Amount spent on repairs = ₹900

Selling Price (SP) of the scooter = ₹9000

Formula Used:

Total Cost Price (Total CP) = Initial Cost Price + Overhead Expenses (Repairs in this case)

Gain = Selling Price (SP) - Total Cost Price (Total CP)

Gain Percentage = $$\frac{\text{Gain }}{\text{ Total CP}}\times$$​ 100

Solution:

Total CP = Cost Price of scooter + Repair expenses

Total CP = ₹6600 + ₹900 = ₹7500

Gain = Selling Price - Total Cost Price

Gain = ₹9,000 - ₹7,500 = ₹1500

Gain Percentage =$$\frac{₹1500 }{₹7500}$$​ × 100​​

Gain Percentage = 20%