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1997 WAEC Mathematics Theory The table below shows how a company's sales manager spent his 1995 annual salary. Food...

Mathematics
WAEC 1997

The table below shows how a company's sales manager spent his 1995 annual salary.

Food 30%
Rent 18%
Car Maintenance 25%
Savings 12%
Taxes 5%
Others  10%

(a) Represent this information on a pie chart.

(b) Find his savings at the end of the year if his annual salary was N60,000.00.

 

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Explanation

Angle of sector:

\(Food = \frac{30}{100} \times 360° = 108°\)

\(Rent = \frac{18}{100} \times 360° = 64.8°\)

\(\text{Car Maintenance} = \frac{25}{100} \times 360° = 90°\)

\(Savings = \frac{12}{100} \times 360° = 43.2°\)

\(Taxes = \frac{5}{100} \times 360° = 18°\)

\(Others = \frac{10}{100} \times 360° = 36°\)

(a) 

(b) Annual Salary = N60,000.00

\(\therefore Savings = N(\frac{12}{100} \times 60,000) = N7,200\)


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