Using the percentage concept, it is found that 20% of the people surveyed were satisfied with the car.
[tex]P = \frac{a}{b} \times 100\%[/tex]
In this problem, 600 out of a total of 3000 people were satisfied with the car, hence:
[tex]P = \frac{600}{3000} \times 100\% = 0.2 \times 100\% = 20\%[/tex]
20% of the people surveyed were satisfied with the car.
You can learn more about the percentage concept at https://brainly.com/question/10491646