Question

A company that makes hair-care products had 8000 people try a new shampoo . Of the 8000 people 32 had allergic reactions .What percent of the people had allergic reaction

Answer 1

0.4 % of total people had allergic reaction

Solution:

Given that company that makes hair-care products had 8000 people try a new shampoo

Of the 8000 people 32 had allergic reactions

To find: percent of the people had allergic reaction

From given information,

Total number of people = 8000

Number of people with allergic reactions = 32

percent of the people had allergic reaction is given as:

$\text{ percent } =\frac{\text{ Number of people with allergic reactions }}{\text{ Total number of people }} \times 100$

$\rightarrow \frac{32}{8000} \times 100\\\\\rightarrow \frac{32}{80} = 0.4$

Thus 0.4 % of total people had allergic reaction