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?	Select.
A) months  B) months  C) months  D) months  E) months
7 * 8 : 9 * x = 8:9 =&gt; x= 7   ANSWER:months
<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?