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The pie chart shows the distribution of 4320 st... - WAEC Mathematics 2009 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
correct option: b

(\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

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