Test Index

JAMB Economics 2014 Paper

Question : 44

Total: 49

If the national income is 60m, the contribution of the manufacturing sector is

Solution:

Concept:

A pie chart sector represents a fraction of the total based on its angle out of

360^\circ

Explanation:

The manufacturing sector has an angle of

108^\circ

Its contribution is the fraction

\frac{108}{360}

of the national income.

National income is given as

60\,m

So contribution

= \frac{108}{360} \times 60\,m

This simplifies to

0.3 \times 60\,m = 18\,m

Answer:

The contribution of the manufacturing sector is

18\,m

Correct option: A.

18\,m

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