SSC CPO 13 Dec 2019 Shift 2 Paper

A, B and C started a business with their capitals in the ratio 1 : 4 : 4. At the end of every 3 months, A doubles his capital, B halves his capital and C leaves his capital unchanged. At the end of the year, if B’s share in the profit was Rs. 4,50,000, then the total profit (in Rs. Lakhs) was ______.