Question

A package of dental floss contains 25m of floss. How many yards of floss are in the package? If a dental hygienist uses about 18 inches of floss for each patient, how many patients can be cleaned with one package of floss?

Answer 1

25m. = 27.3403yd. of floss in the package. 27.3403yd. = 984.2508in. of floss.
If a hygenist uses 18in. of floss for each patient, 18 / 984.2508 = 54.6806 patients. Hope this helps.