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BECE Mathematics 2013 Paper

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Question : 21

Total: 40

Mame Esi rides her bicycle to school and back everyday. If the distance from her home to the school is 2345 m , how many kilometers does she cover everyday?

$4.98 \text{ km}$
$4.69 \text{ km}$
$3.96 \text{ km}$
$3.68 \text{ km}$

Solution:

Concept:

Riding to school and back means the one-way distance is covered twice each day; convert the total distance from metres to kilometres.

Explanation:

Distance from home to school

= 2345 \text{ m}

.

Everyday, Mame Esi travels there and back, so total distance covered

= 2 \times 2345 \text{ m} = 4690 \text{ m}

.

Since

1000 \text{ m} = 1 \text{ km}

, divide the total metres by

1000

:

4690 \text{ m} = \frac{4690}{1000} \text{ km} = 4.69 \text{ km}

.

Answer:

She covers

4.69 \text{ km}

everyday. Hence, the correct option is B.

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