Answer
Results of the study are as follows:
Gum A removed 47.6% stain, Gum B removed 45.2%, Gum C removed 21.4% stain and saliva removed 2.1% stain. Hence we can conclude that Gum A is most effective. Moreover Gum A and B removed more stain as compared to Gum C and saliva. Gum C removed more stain as compared to saliva and saliva is least efficient.
Work Step by Step
As given above.
