Ms. Zareen purchased stock for Tk. 15,000 and 2/3 of it after its value doubled. She sold the remaining stock at 5 times its purchase price , what was her total profit?
A
Tk. 15,000
B
Tk. 20,000
C
Tk. 25,000
D
Tk. 30,000
Correct Answer: Tk. 30,000
Original price: 2/3 of stock = 10000 1/3 of stock = 5000 Sale price: 2/3 doubled = 2*10000 = 20000 1/3 quintupled = 5*5000 = 25000 Total profit = Total selling price - Total purchase price of stock = (20000 + 25000) - (10000 + 5000) = 45000 - 15000 = 30000 tk