Question

When a beaker of sand is dried in a hot oven its mass reduces from 450 grams to320 grams. Find the percentage reduction in its mass.

Answer 1

Answer:

28.89%

Step-by-step explanation:

Mass reduced = 450 - 320 = 130g

% reduced = $\frac{130}{450} \times 100$

$\\\\ \implies 28.89\%$

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