<Dd> Thus, the profit maximizing output is 2025 units </Dd> <P> And the profit is </P> <Dl> <Dd> T R − T C = Π (\ displaystyle TR - TC = \ Pi) </Dd> <Dd> Π = 40 (2025) − 30 (2025) (\ displaystyle \ Pi = 40 (2025) - 30 (2025)) </Dd> <Dd> Π = 81, 000 − 60, 750 (\ displaystyle \ Pi = 81,000 - 60,750) </Dd> <Dd> Π = 20, 250 (\ displaystyle \ Pi = 20,250) </Dd> </Dl> <Dd> T R − T C = Π (\ displaystyle TR - TC = \ Pi) </Dd>

As the quantity of labour increases the marginal product of labour