Q:

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

• 1
  ₹ 21.00
• 2
  ₹ 21.25
• 3
  ₹ 20.00
• 4
  ₹ 17.75