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BECE Mathematics 2012 Paper

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Question : 28

Total: 40

Esi went to the market and bought 500 g of meat, 850 g of fish and 900 g of eggs. What is the total weight of the items she bought in kilograms?

$2.20\,\mathrm{kg}$
$2.25\,\mathrm{kg}$
$2.35\,\mathrm{kg}$
$22.50\,\mathrm{kg}$

Solution:

Concept:

To convert grams to kilograms, divide the total weight in grams by

1000

, because

1\,\mathrm{kg} = 1000\,\mathrm{g}

.

Explanation:

Step 1: Add all the weights in grams.

500\,\mathrm{g} + 850\,\mathrm{g} + 900\,\mathrm{g} = 2250\,\mathrm{g}

Step 2: Convert grams to kilograms by dividing by

1000

.

2250\,\mathrm{g} = \frac{2250}{1000}\,\mathrm{kg} = 2.25\,\mathrm{kg}

Therefore, the total weight of all the items she bought is

2.25\,\mathrm{kg}

.

Answer:

2.25\,\mathrm{kg}

(Option B)

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