In: Economics
Teacher's Helper is a small company that has a subcontract to produce instructional materials for disabled children in public school districts. The owner rents several small rooms in an office building in the suburbs for $600 a month and has leased computer equipment that costs $480 a month.
Answer the following questions:
A) What is the marginal cost of creating the tenth instructional module in a given month?
B) What is the average variable cost for the month if six instructional modules are produced?
C) What is the average fixed cost for the month if nine instructional modules are produced?
D) How many instructional modules are produced when the marginal cost is $1300?
E) One month, Teacher's Helper produced 18 instructional modules. What was the average fixed cost for that month?
Q | FC | VC | TC=FC+VC= ATC(Q) | AFC=FC/Q | AVC=VC/Q | ATC=TC/Q | MC=Change in TC |
0 | (600+480)=1080 | 0 | 1080 | - | - | - | - |
1 | 1080 | 400 | (1080+400)=1480 | 1080 | 400 | 1480 | (1480-1080)=400 |
2 | 1080 | 850 | (965)(2)=1930 | 540 | 425 | 965 | (1930-1480)= 450 |
3 | 1080 | 1350 | 2430 | 360 | 450 | 810 | (2430-1930)=500 |
4 | 1080 | 1900 | (1080+1900)=2980 | 270 | 475 | 745 | (2980-2430)=550 |
5 | 1080 | 2500 | (1080+2500)=3580 | 216 | 500 | 716 | (3580-2980)=600 |
6 | 1080 | (4280-1080)=3200 | 4280 | 180 | 533.33 | 713.3 | 700 |
7 | 1080 | 4100 | (1080+4100)=5180 | 154.3 | 585.7 | 740 | (5180-4280)=900 |
8 | 1080 | 5400 | (1080+5400)=6480 | 135 | 675 | 810 | (6480-5180)=1300 |
9 | 1080 | 7300 | (1080+7300)=8380 | 120 | 811.1 | 922.2 | (8380-6480)=1900 |
10 | 1080 | (10880-1080)=9800 | 10880 | 108 | 980 | 1088 | (10880-8380)=2500 |
(a) Marginal cost of creating the 10th instructional module = $2500.
(b) Average variable cost if six instructional modules are produced = $533.33.
(c) Average fixed cost if nine instructional modules are produced = 1080/9 = $120.
(d) When marginal cost = $1300 , then we can see from the above table that 8 instructional modules are produced.
(e) If 18 instructional modules are produced , then average fixed cost = 1080/18= $60.