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a company that makes hair care products had people try a new shampoo. Of the 300 people, 90 had a mild allergic reaction. What percent of the people had a mild allergic reaction?

Answer :

The expression for percentage is

[tex]Percentage=\frac{\text{Amount whose percentage has to be calculated}}{Total\text{ amount}}\times100[/tex]

Here out of 300 people, 90 people have allergic

[tex]\begin{gathered} \text{Percentage =}\frac{Number\text{ of people have mild allergic}}{Total\text{ number of people used Shampoo}}\times100 \\ \text{Percentage}=\frac{90}{300}\times100 \\ \text{Percentage}=\frac{90}{3} \\ \text{Percentage}=30 \end{gathered}[/tex]

The percentage of peoplw who have mild allegric is 30%

Answer : 30%

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