Correct option is D
Solution:
Average sale per company for the product A =3(2750+2500+3500)=38750=2916.67
Average sale per company for the product B = 3(3250+3000+3150)=39400=3133.34
Average sale per company for the product C = 3(2250+1750+2400)=36400=2133.34
Average sale per product is for the company X = 3(2750+3250+2250)=38250=2750
Average sale per product is for the company Y = 3(2500+3000+1750)=37250=2416.67
Average sale per product is for the company Z = 3(3500+3150+2400)=39050=3016.67
Hence, the highest average sale per company is for the product B and the
lowest average sale per product is for the company Y.