A pie chart shows the distribution of students across 5 faculties in a university. If 20% are in Arts, 25% in Science, 15% in Law, 30% in Engineering, and the rest in Commerce, what is the angle (in degrees) for Commerce?
To solve the problem, we need to calculate the angle in a pie chart that corresponds to the percentage of students in the Commerce faculty.
- Pie Chart: A circular chart divided into sectors, each representing a proportion of the whole.
- Total Angle in Circle: A full circle is 360°.
- Angle for a Sector: Calculated using the formula:
\[ \text{Angle} = \frac{\text{Percentage}}{100} \times 360^\circ \]
- Arts: 20%
- Science: 25%
- Law: 15%
- Engineering: 30%
- Commerce = Remaining % = 100% - (20% + 25% + 15% + 30%) = 10%
\[ \text{Angle for Commerce} = \frac{10}{100} \times 360^\circ = 36^\circ \]
The angle representing the Commerce faculty in the pie chart is 36 degrees.
The plots below depict and compare the average monthly incomes (in Rs. ’000) of males and females in ten cities of India in the years 2005 and 2015. The ten cities, marked A-J in the records, are of different population sizes. For a fair comparison, to adjust for inflation, incomes for both the periods are scaled to 2025 prices. Each red dot represents the average monthly income of females in a particular city in a particular year, while each blue dot represents the average monthly income of males in a particular city in a particular year. The gender gap for a city, for a particular year, is defined as the absolute value of the average monthly income of males, minus the average monthly income of females, in that year.
A bar graph shows the number of students in 5 departments of a college. If the average number of students is 240 and the number of students in the Science department is 320, how many students are there in total in the other four departments?