P and Q started a business in partnership investing Rs. 20,000 and Rs. 15,000 respectively. After 8 months S joined them with Rs. 20,000. What will be Q's share in the total profit of Rs. 145,000 earned at the end of 2 years from the starting of the business?
1
Rs. 60000
2
Rs. 45000
3
Rs. 72000
4
Rs. 42000
5
Not Attempted