Given below are two quantities named A and B. Based on the given information, you have to determine the relationship between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers.
Quantity A: A shopkeeper bought 300 pens for Rs 1200. He wanted to sell them at a profit so that he got 36 pens for free. At what profit percent should he sell them?
Quantity B: 15%
1. Quantity A > Quantity B
2. Quantity A < Quantity B
3. Quantity A ≥ Quantity B
4. Quantity A ≤ Quantity B
5. Quantity A = Quantity B or No relation