Given that the following pie chart represents the answers of 100 people about their favorite food, how many people like meat?
The following pie chart represents the blood types of a group of 200 people. How many people in the group have blood type O?
100 students were surveyed about their favorite subject. The answers indicated that 20 of them like mathematics, 30 like science, and 10 like social studies, while the rest like English. In order to draw the pie chart for these results, the sector angle for each part needs to be calculated. What is the sector angle that represents mathematics?
After calculating the angle for each sector, choose the pie chart that represents the case.