Local Department Store Across Town Neighboring City Travel T
Solution
Junatia will minimise the cost if she will buy thhe dress from local department store.
Explanation:
Local Department Store:
Time taken to go to local department shop = 15 min
Time taken to return to work = 15 min (as time taken to return back to work = time taken to go to that place)
time taken for shopping = 30 min
Total time taken = 60 min = 1 hour
Since she losses $56 per hour by not working, the opportunity cost of her time = $56 * 1 = $56
Total cost = Opportunity Cost + Cost of dress
= $56 + $100 = $156
Across Town:
Time taken to go to local department shop = 30 min
Time taken to return to work = 30 min (as time taken to return back to work = time taken to go to that place)
time taken for shopping = 30 min
Total time taken = 60 min = 90 min or 1.5 hour
Since she losses $56 per hour by not working, the opportunity cost of her time = $56 * 1.5 = $84
Total cost = Opportunity Cost + Cost of dress
= $84 + $86 = $170
Neighbouring City:
Time taken to go to local department shop = 60 min
Time taken to return to work = 60 min (as time taken to return back to work = time taken to go to that place)
time taken for shopping = 30 min
Total time taken = 150 min = 2.5 hour
Since she losses $56 per hour by not working, the opportunity cost of her time = $56 * 2.5 = $140
Total cost = Opportunity Cost + Cost of dress
= $140 + $63 = $203
| Store | Opportunity cost of time(dollars) | Price of a dress(dollar per dress) | Total cost(dollars) | 
| Local Department Store | $56 | $100 | $156 | 
| Across town | $84 | $86 | $170 | 
| Neighbouring City | $140 | $63 | $203 | 


