In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'. If it would (1)/ rain, they will (2)/not come. (3)/ No Error (4)
If hiring an extra worker increases a brick making unit's output from 2000 to 2250 units per day, but the factory has to reduce the price of its brick from Rs 15 to Rs 14 per brick to sell the additional output, the marginal revenue product of the last worker is