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WAEC Mathematics 2019 Paper

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Question : 27

Total: 50

Eric sold his house through an agent who charged 8% commission on the selling price. If Eric received \$117,760.00 after the sale, what was the selling price of the house?

\$130,000.00
\$128,000.00
\$125,000.00
\$120,000.00

Solution:

Concept:

The selling price minus the agent's commission equals the amount Eric received.

Explanation:

Let the selling price be

x

.

Commission charged by the agent is

8\%

of

x = \frac{8}{100}x

.

Amount Eric received is

x - \frac{8}{100}x = 117{,}760

.

So,

\frac{92}{100}x = 117{,}760

.

Now solve for

x

:

x = \frac{117{,}760 \times 100}{92}

.

x = \frac{11{,}776{,}000}{92} = 128{,}000

.

Answer:

The selling price of the house was

\$128{,}000.00

.

Correct option: B.

\$128{,}000.00

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