A and B started a business with some investments. A as working partner received 40% of the annual profits as salary and the remaining was equally divided among A and B. If the entire profit was divided among A and B in the ratio of their investments, A would have received Rs. 900 less than what he actually got. B got a profit share of Rs. 2100. If B's investment is Rs. 45000, A's investment is (in Rs.)
75000
60000
90000
45000
-
Let P be the total profit.
%
Had the profit been divided in the ratio of their investment,