A toy company manufactures two types of dolls, A and B. Market tests and available resources have indicated that the combined production level should not exceed 1200 dolls per week and the demand for detts of type B is utmost half of that for dolls of type A. Further, the production level of dolls of type A can exceed three times the production of dolls of other type by utmost 600 units . If the company makes profit Rs 12 Rs. 16 per doll respectively on dolls a and B, how many of each should be produced weekly in order to maximise the profit ?