A and B invests Rs.3500 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:	A) 21:5	B) 21:16	C) 21:2	D) 9:9	E) 21:11
(3.5*6 + 7*6): (4*12)   63:48 =&gt;   21:16   Answer:21:16
<result>B</result>
A and B invests Rs.3500 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?