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BECE Mathematics 2015 Paper

Question : 22

Total: 40

Solution:

Concept:

Discount is always calculated as a percentage of the cost price.

Here, the discount per watch is

2\%

of GH₵ 2,000.00.

Explanation:

First, convert the discount percentage into a fraction.

2\% = \frac{2}{100}

Discount on one wrist watch:

\text{Discount on 1 watch} = \frac{2}{100} \times 2000

= 40

So, the discount on one watch is GH₵ 40.00.

Now, to find the discount on 20 such wrist watches:

\text{Total discount} = 40 \times 20 = 800

Hence, the total discount on 20 wrist watches is GH₵ 800.00.

Answer:

Option C: GH₵ 800.00.

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