A hypothetical car manufacture company makes its best selling car at its two plants in Windhoek. At the first plant, the unit cost is N$ 3.60, and the fixed cost is N$ 1260. At the second plant, the unit cost is N$ 3.30, and the fixed cost is N$ 2637. The company wants the plants to produce a combined total of 900 cars, but the total cost at each plant must be the same. How many cars should be produced at each plant?