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Paper 2 · November 2010 · Percentages and Money

During a sale, the price of a camera was reduced from $160 to$ 148,80. Calculate the percentage decrease in price.

Model answer

7

Also accepted: 7%, 7 percent

Explanation

The reduction is

160 - 148,80 = 11,20

. A percentage decrease is measured against the original price, so it is

\frac{11,20}{160} \times 100 = 7

. The price fell by

7\%

.

Derived from ZIMSEC Mathematics 4028/2, November 2010, Q1

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