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

Answer:

0.4%

Step-by-step 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 $q = \frac{p}q\times 100$

Here,

$p = 28\\q =7000$

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

$\dfrac{28}{7000}\times 100\\\Rightarrow \dfrac{2800}{7000} \\\Rightarrow 0.4\%$