Question

A dentist allows patients to select new toothbrushes after each visit. The table below shows the types of toothbrushes selected by patients during the last three months. What percentage, to the nearest tenth, of patients selected toothbrushes with soft bristles?

Answer 1

The percentage of patients who selected brushes with soft bristles is 23.3%

Using the information given in the table ;

• Number of patients who selected brushes with soft bristles = 96
• Total number of patients = 412

The percentage can be calculated as ;

(Number of patients who selected brushes with soft bristles/ Total number of patients) × 100%

Now we have ;

(96 / 412) × 100% = 23.3%

Hence, the result is 23.3%