7 workers work in a printing press. Each gets 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

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SSC JE Exam stands for Staff Selection Commission Junior Engineers Exam, which is held for Civil, Electrical, Mechanical, Quantity Surveying and contract Posts for recruitment in various Organizations/Ministries/Departments in the Government of India.