Using the percentage concept, it is found that 20% of 150 is 30.
The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:
[tex]P = \frac{a}{b} \times 100\%[/tex]
In this problem, we have that [tex]b = 150, P = 20\%[/tex], and we want to find a, hence:
[tex]P = \frac{a}{b} \times 100\%[/tex]
[tex]20\% = \frac{a}{150} \times 100\%[/tex]
[tex]\frac{a}{150} = 0.2[/tex]
[tex]a = 0.2(150)[/tex]
[tex]a = 30[/tex]
Hence, 20% of 150 is 30.
You can learn more about the percentage concept at https://brainly.com/question/10491646
