The Indian Navy has inducted two MQ-9B Sea Guardian unarmed drones procured from the U.S. on lease to enhance surveillance over the Indian Ocean Region (IOR).
7 workers work in a printing press. Each gets paid Rs 450 per day. The 8th worker demands Rs 500 per day. If this worker is hired then all other workers must be paid Rs 500. The marginal resource (labour) cost of the 8th worker is _______.