The angle in a pie chart — Tables & Charts Aptitude Question
The angle in a pie chart: | Head | Percentage | |---------------|------------| | Salaries | 35% | | Rent | 20% | |… Answer and worked solution on CodeKairo.
- Topic: Tables & Charts
- Section: Data Interpretation
- Difficulty: Medium
- Time target: 60 seconds
Question
| Head | Percentage |
|---|---|
| Salaries | 35% |
| Rent | 20% |
| Marketing | 15% |
| Raw materials | 25% |
| Others | 5% |
If this data were shown as a pie chart, what would be the central angle for raw materials?
Options
- 72°
- 80°
- 90°
- 108°
Show the answer and the worked solution
Correct answer: C. 90°
Worked solution
- Raw materials take 25% of the total.
- Angle = 25% of 360° = 90°.
Answer: 90°.
The idea
Each percentage point is 3.6° of the circle. Multiplying the percentage by 3.6 gives the angle directly.
Shortcut. 25% is a quarter of the circle, and a quarter of 360° is a right angle: 90°.
Common trap. 72° — 360° ÷ 5, as if all five heads had equal slices; that is rent's 20%, not raw materials' 25%.