Test Index

BECE Science 2023 Paper

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Question : 26

Total: 40

The following products,

X, Y, Z

W

0.05\,\mathrm{kg}, 50\,\mathrm{mg}, 500\,\mathrm{g}

and 0.05 g respectively. Use this information to answer the question below.

Which of the products have the same mass?

Y and W
$X$ and $Y$
Y and Z
X and W

Solution:

Concept:

To compare masses, convert all values to the same unit.

Explanation:

Convert each mass into grams.

Product

X

:

0.05\,\mathrm{kg} = 0.05 \times 1000 = 50\,\mathrm{g}

.

Product

Y

:

50\,\mathrm{mg} = \frac{50}{1000} = 0.05\,\mathrm{g}

.

Product

Z

:

500\,\mathrm{g}

.

Product

W

:

0.05\,\mathrm{g}

.

Products

Y

and

W

both equal

0.05\,\mathrm{g}

.

So, they have the same mass.

Answer:

A. Y and W

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