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JAMB Mathematics 2019 Paper

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Question : 53

Total: 73

A factory worker earns ₦50,000 per month out of which he spends 15% on his children's education, ₦13,600 on Food, 3% on electricity and uses the rest for his personal purpose. How much does he have left?

N21,850
N18,780
N27,400
N32,500

Solution:

Concept:

The worker's leftover amount is found by subtracting all listed expenses from the monthly salary.

Explanation:

Amount spent on children's education =

\frac{15}{100} \times \text{₦}50{,}000 = \text{₦}7{,}500

.

Food expenses =

\text{₦}13{,}600

.

Electricity expenses =

\frac{3}{100} \times \text{₦}50{,}000 = \text{₦}1{,}500

.

Total expenses =

\text{₦}7{,}500 + \text{₦}13{,}600 + \text{₦}1{,}500 = \text{₦}22{,}600

.

Money left =

\text{₦}50{,}000 - \text{₦}22{,}600 = \text{₦}27{,}400

.

Answer:

C.

\text{₦}27{,}400

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