Solution:
Costing of the work order refers to the scheme by which batches of the product or particular component are allocated production costs.  
The costs of the work order shall be borne where the commodity generated by the firm is substantially specific. Consequently, the expense of Job No. 9-1005 is estimated as follows:
Particulars                                                   Amount 
Direct material issued to Q-4698               $1.250 
Direct material issued to Q-4725               $1,000 
Direct Labor issued to W-3393                   $600 
Direct Labor issued to W-3479                   $450 
Direct Labor issued to W-3559                   $300 
Overhead (51.350 x 1. I)                               $4.160 
Cost pertaining to Job No. 9-1005             $5,085  
Hence, it is ascertained that the cost pertaining to Job No. 9-1005 accounts for  $5,085