Answer:
Consumption ratios for the four drivers in relation to both the cards will be consumption for a particular card/total consumption for both the cards which will be as follows :-
Total consumption for Inspection = 140 + 60
                            = 200
Total consumption for Setup = 60 + 20
                        = 80
Total consumption for Machine = 180 + 650
                           = 830
Total consumption for Number of moves = 230 + 60
                                  = 290
Hence,
Consumption ratios for Inspection hours:
Scented Cards = [tex]\frac{140}{200}[/tex]
             = 0.7
Regular Cards = [tex]\frac{60}{200}[/tex]
             = 0.3
Consumption ratios for Setup hours:
Scented Cards = [tex]\frac{60}{80}[/tex]
             = 0.75
Regular Cards = [tex]\frac{20}{80}[/tex]
             = 0.25
Consumption ratios for Machine hours:
Scented Cards = [tex]\frac{180}{830}[/tex]
             = 0.22
Regular Cards = [tex]\frac{650}{830}[/tex]
             = 0.78
Consumption ratios for Number of moves:
Scented Cards = [tex]\frac{230}{290}[/tex]
             = 0.79
Regular Cards = [tex]\frac{60}{290}[/tex]
             = 0.21