A and B invests Rs.1500 and Rs.4000 respectively in a business. If A doubles his capital after 6 months. In what ratio should A and B divide that year's profit?
Choose the correct choice from the following answers:
A) 9 : 5
B) 9 : 8
C) 9 : 2
D) 9 : 9
E) 9 : 16

Rationale: "( 1.5 * 6 + 3 * 6 ) : ( 4 * 12 ) 27 : 48 = > 9 : 16 answer : e"
Answer: E