A and B enter into partnership with capital as 7:9. At the end of 8 months, A withdraws. If they receive the profits in the ratio of 8:9 find how long B's capital was used? Choose one
A) 5  B) 1  C) 8  D) 7  E) 4
7 * 8 : 9 * x = 8:9 =&gt; x= 7   Answer:7
<result>D</result>
A and B enter into partnership with capital as 7:9. At the end of 8 months, A withdraws. If they receive the profits in the ratio of 8:9 find how long B's capital was used?