Atulit buys an old bicycle for ₹4,000 and spends ₹400 towards its repairs. If he sells the bicycle for ₹5,000 his percentage gains is :

Correct option is D

Given:

C.P of bicycle = 4,000

He spends Rs. 400 towards its repairs.

S.P of bicycle = 5,000

Formula used:

Profit% = ​$$\frac{[(S.P−C.P)}{C.P}× 100$$

Solution:

Total C.P = 4000 + 400 = Rs. 4400

​$$P\% = \frac{[(5000−4400)}{4400}× 100$$​​

​$$=> P\% = \frac{600}{4400} × 100$$​​
​$$P\% = 0.13636 \times 100 = 13.636 \ \text{or} \ 13 \frac{7}{11}\%$$

Hence, option (d) is correct answer.