Question

Fill in the gaps in the table below.

Quantity of variable input	Total output	Marginal product of variable input	Average product of variable input
0	0
1	225
2			300
3		300
4	1140
5		225
6			225

Short answer

The following table is completed below.

Quantity of variable input	Total output	Marginal product of variable input	Average product of variable input
0	0	-	-
1	225	225	225
2	600	375	300
3	900	300	300
4	1140	240	285
5	1365	225	273
6	1350	-15	225

Step-by-step solution

The computation for TP, MP, and AP 

The total product (TP) can be computed from the AP in the following way:

TP = AP x Q

= 300 x 2

= 600

The marginal product (MP) refers to the extra output produced due to the employment of additional input. Here, the MP of the variable input (=2 units) is computed in the following way:

MP = TP₂ - TP₁

= 600 - 225

= 375

The average product (AP) refers to the output produced per unit of input. Here, the AP of the variable input (=4 units) is computed below.

$AP=\frac{TP}{Q}=\frac{1140}{4}=285$

The completion of the table 

The given table is computed below.

Quantity of variable input	Total output	Marginal product of variable input	Average product of variable input
0	0	-	-
1	225	225	225
2	600	375	300
3	900	300	300
4	1140	240	285
5	1365	225	273
6	1350	-15	225