A starts business with Rs. 3500 and after 5 months, B joins with A as his partner. After a year, the profit is divided in the ratio 2 : 3. What is B's contribution in the capital? Choose the correct choice from the following answers:
A) Rs. 7500
B) Rs. 8000
C) Rs. 8500
D) Rs. 9000
E) None of these
Explanation:   Let B's capital be Rs. x.   Then,(3500x 12 / 7 )=2/3   14x = 126000   x = 9000.   Answer is Rs. 9000
<result>D</result>
A starts business with Rs. 3500 and after 5 months, B joins with A as his partner. After a year, the profit is divided in the ratio 2 : 3. What is B's contribution in the capital?