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JAMB Economics 2012 Paper

Question : 44

Total: 49

The percentage contribution of Agricultural sector is

Solution:

Concept:

A sector’s percentage contribution in a pie chart is the ratio of its angle to the total angle (

360^\circ

), multiplied by

100

Explanation:

From the pie chart, the Agricultural sector has an angle of

90^\circ

Total angle of the pie chart is

360^\circ

Percentage contribution is calculated as:

\frac{90}{360} \times 100 = 25\%

Answer:

25.0

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