The marked price of a toy car is Rs.600. The shopkeeper gives a discount of 4% and still makes a profit of 28%. Find the cost price.

Correct option is D

Given: 

Marked price =Rs600

Discount = 4%

Profit = 28%

Solution: ​

According to question

Let cost price = 100

selling price = 100+28%of 100=128

selling price = 600$$\times 96$$ 

Cost price = $$\frac{600\times96}{128} = Rs450$$​​