Test Index

JAMB Economics 2018 Paper

Question : 56

Total: 85

A country's budget allocation to various sectors of the economy is shown in the pie chart .

Solution:

Concept:

In a pie chart, the amount spent on a sector is proportional to the angle of that sector.

So, a sector’s expenditure is

\frac{\text{sector angle}}{360^\circ}

of the total budget.

Explanation:

Total budget

= 7200

Health sector angle

= 60^\circ

Health expenditure

= \frac{60^\circ}{360^\circ}\times 7200 = 1200

Agriculture sector angle

= 80^\circ

Agriculture expenditure

= \frac{80^\circ}{360^\circ}\times 7200 = 1600

Ratio of Health to Agriculture

= 1200 : 1600

Divide both sides by

400

1200 \div 400 = 3

1600 \div 400 = 4

Therefore, Health : Agriculture

= 3 : 4

Answer:

3:4

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