Table 14.1
$\begin{array}{|c|c|}
\hline \begin{array}{c}
\text { Quantity of } \
\text { labour }
\end{array} & \text { Output (units) } \
\hline 1 & 80 \
\hline 2 & 170 \
\hline 3 & 240 \
\hline 4 & 300 \
\hline 5 & 350 \
\hline 6 & 390 \
\hline 7 & 420 \
\hline
\end{array}$
-Refer to Table 14.1.The marginal product of the fourth unit of labour is

Question

Table 14.1
 $\begin{array}{|c|c|}
\hline \begin{array}{c}
\text { Quantity of } \
\text { labour }
\end{array} & \text { Output (units) } \
\hline 1 & 80 \
\hline 2 & 170 \
\hline 3 & 240 \
\hline 4 & 300 \
\hline 5 & 350 \
\hline 6 & 390 \
\hline 7 & 420 \
\hline
\end{array}$
-Refer to Table 14.1.The marginal product of the fourth unit of labour is

Quizplus · Accepted Answer

The marginal product of labour can be calculated as the change in output when one additional unit of labour is added. Therefore, the marginal product of the fourth unit of labour is:

Marginal product of fourth unit of labour = Output with four units of labour - Output with three units of labour
= 300 - 240
= 60

Therefore, the answer is (C) 60.

As for the best choice, it would depend on the context and specific question being asked. If we are trying to maximize output, then we would want to continue adding labour until the marginal product of labour starts to decrease. However, if we are trying to minimize costs or maximize profits, we would need to take into account the cost of each unit of labour and the price of the output. Without further information, it is not possible to determine the best choice.

Table 141 -Refer to Table 14