Units of variable factorTotal

Product125231340448555\begin{array}{c|c}

\text{Units of variable factor} & \text{Total

Product} \\

\hline

1 & 25 \\

\hline

2 & 31 \\

\hline

3 & 40 \\

\hline

4 & 48 \\

\hline

5 & 55 \\

\end{array}

The marginal product at the fifth variable factor is

  • A 7
  • B 6
  • C 5
  • D 9
jamb 2015economics

The correct answer is A. 7

MP = Δ TP ÷ Δ L

= (TP2 – TP1) ÷ L2 – L1

= (55 – 48 ) ÷ (5 – 4) = 7 ÷ 1

= 7

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