Question

A cosmetic company tested a new lotion. Of the 2,500 people tested 15 had an allergic reaction. What percentage of the people had an allergic reaction?

Answer 1

0.6%. 100% divided by 2,500 people means each person is worth 0.04%. 0.04 times 15 is 0.6

Answer 2

Answer:

0.6%

Step-by-step explanation:

The cosmetic company tested a new lotion on 2500 people.

Number of people had the allergic reaction = 15

so percentage of allergic patients = $\frac{\text{number of allergic people}}{\text{total people taken for test}}\times 100$

= $\frac{15}{2500}\times 100$

= $\frac{15}{25}$ = 0.6%

percentage of the people is 0.6%