Examples of Percentages
In this class, We discuss Examples of Percentages.
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Example 1:
2 is what percent of 50?
Solution:
2 grams
50 grams
First, we understand the basic concept.
Fifty grams divided into hundred equal parts.
Each part is 0.5 grams.
0.5 * 4 = 2, so 2 is 4 percent of 50.
4% converted to a fraction.
4/100 = 2/50
2 is what percent of 50?
We write it as 2/50.
2/50 is a fraction representation of the percentage.
2/50 * 100 is a way to represent fractions to percentages.
2/50 * 100 = 4%
Example 2:
1/2 is what percent of 1/3?
Solution:
(1/2)/(1/3) * 100 = 3/2*100 = 150%
Important: percentage value can be above 100.
Example:
If a person’s salary is 1000rs.
The salary increased to 5000rs.
There is an increase of 400% in salary.
Example 3:
What percent of 6.5 liters are 130 milliliters?
Solution:
6.5 liters convert to milliliters = 6.5 * 1000
(130/(6.5*1000))*100 = 2%
Example 4:
? % of 25 = 2.125
Solution:
x% of 25 = (x/100)*25 = 2.125
x = 8.5%
Example 5:
The sales tax is reduced from 3 1/2% to 3 1/3%. What difference does it make to a person who purchases a book of Rs 8400?
Solution:
(3 1/2% of 8400) – (3 1/3% of 8400)
(7/2% of 8400) – (10/3% of 8400)
((7/2)/100 * 8400) – ((10/3) * 8400)
= Rs 14