Answer:
Marginal Product of Labour = 5K
Step-by-step explanation:
Marginal product of labor is the change in output when additional labor is added,
To calculate marginal product of labor you simply divide the change in total product by the change in labour.
Marginal product of labour (MPL) = Change in total products/ Change in labour
Here, change in labour = 5KL
Change in labour = L
MPL = 5KL/L
MPL = 5K