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# The pie chart shows the distribution of 4320 students who graduated from four de...

### Question

The pie chart shows the distribution of 4320 students who graduated from four departments in a university. How many students graduated from the science department?

A) 840

B) 864

C) 920

D) 960

### Explanation:

$$\frac{\text{science}}{\text{graduates}}$$ = $$\frac{\theta}{360}$$ x 4320

where $$\theta$$ + 100 + 80 + 108 = 360

$$\theta$$ = 360 - 288 = 360

$$\frac{\text{science}}{\text{graduates}}$$ = $$\frac{72}{360} \times 4320$$

= 864

## Dicussion (1)

• $$\frac{\text{science}}{\text{graduates}}$$ = $$\frac{\theta}{360}$$ x 4320

where $$\theta$$ + 100 + 80 + 108 = 360

$$\theta$$ = 360 - 288 = 360

$$\frac{\text{science}}{\text{graduates}}$$ = $$\frac{72}{360} \times 4320$$

= 864