Question

A skin-care company had 1,500 people try a new acne cream. Nine people had a mild allergic reaction. What percent of the people had a mild allergic reaction?
A. 0.006%
B. 0.6%
C. 166.7%
D. 0.06%

Answer 1

Answer:

0.6% of the people had a mild allergic reaction. option B is the correct answer

Explanation:

The skin-care company had 1,500 people try a new acne cream.

Nine people had a mild allergic reaction.

Percent of the people had a mild allergic reaction =

$=\frac{9*100}{1500} \\= 0.6$

0.6% of the people had a mild allergic reaction. option B is the correct answer.

Percentage :

Express a number or percentage in terms of 100 by using the percentage formula. Simply put, % means one out of 100. You can use the percentage formula to create an expression for a value between 0 and 1. It is a number with a fractional representation of the number 100. It is typically used to compare data points and calculate ratios, and the sign% is used to indicate it. In order to calculate percentage increases, multiply the ratio of the increased value to the original value by 100. In percentage form, it is described. Anything whose value is increased will also increase in proportion.

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