A shopkeeper sells a badminton racket whose marked price is Rs. 30, at a discount of 15% and gives a shuttle cock costing Rs. 1.50 free with each racket. Even then he makes a profit of 20%. His cost price, per racket is = ?

A. Rs. 21.00

B. Rs. 21.25

C. Rs. 20.00

D. Rs. 17.75

Answer: Option C

Solution(By Examveda Team)

Mark price of racket = Rs. 30
After discount selling price = 85% of Rs. 30
$$\eqalign{ & = \frac{{85}}{{100}} \times 30{\text{ }} \cr & = {\text{Rs}}{\text{. 25}}{\text{.50 }} \cr & {\text{Selling price of racket }} \cr & = {\text{25}}{\text{.50}} - {\text{1}}{\text{.50}} \cr & = {\text{Rs}}{\text{. 24}} \cr & {\text{Cost price of racket}} \cr & = 24 \times \frac{{100}}{{120}}{\text{ }} \cr & = {\text{Rs}}{\text{. 20}} \cr} $$