Question

A company that makes hair care products at 7000 people trying to shampoo of the 7000 people 28 had a mild allergic reaction what percent of the people had a mild allergic reaction

Answer 1

0.4%

Explanation:

Given that:

Number of people with mild allergic reaction = 28

Total number of people = 7000

To find:

Percentage of people who have a mild allergic reaction to the shampoo = ?

Solution:

First of all, let us understand how can we calculate percentage of a particular amount.

Percentage of a particular amount can be calculated by dividing the amount with the total amount and then multiplying it with 100.

Percentage of
`p` from
`q = \frac{p}q* 100`

Here,

`p = 28\\q =7000`

Therefore, the percentage of people who have mild allergic reaction:

`(28)/(7000)* 100\\\Rightarrow (2800)/(7000) \\\Rightarrow 0.4\%`