P, Q and R started a business each investing Rs. 12000, Rs. 13000 and Rs. 15000 respectively. After 1 year the profit recorded by the business was Rs. 20000, then find the share of P in the profit.
1
Rs. 6500
2
Rs. 6000
3
Rs. 7000
4
Rs. 60000
5
Rs. 7500