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 the most appropriate option:
A) 11	B) 1	C) 2	D) 7	E) 9
Explanation:   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?