A and B invests Rs.3000 and Rs.6000 respectively in a business. If A doubles his capital after 6 months. In what ratio should A and B divide that year's profit?  Pick
A) 3:4  B) 9:8  C) 9:9  D) 9:5  E) 9:1
(3*6 + 6*6): (6*12)   54:72 =&gt; 3:4   3:4nswer: 3:4
<result>A</result>
A and B invests Rs.3000 and Rs.6000 respectively in a business. If A doubles his capital after 6 months. In what ratio should A and B divide that year's profit?