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?

7500 8000 8500 9000

9000

Let B's capital be Rs. x Then, (3500*12/7x) =2/3 4x = 126000 x = 9000.