P, Q and R enter into a partnership. P invests some amount at the beginning. Q invests double the amount after 6 months and R invests thrice the amount invested by P after 8 months. They earn a profit of Rs. 36000 at the end of the year. What is Q’s share in the profit?
1
Rs. 12300
2
Rs. 13000
3
Rs. 11400
4
Rs. 13500
5
Rs. 12000