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If the weight of five sheets of paper is 20 g, how many sheets of the same paper would weigh 2.5 kg?
Given: Weight of 5 sheets of paper is 20g.
To do: Find how many sheets of same paper would weigh 2.5kg.
Solution:
Weight of 5 sheets = 20 grams.
Therefore weight of one sheet = $\frac{20}{5}$ = 4 grams.
We know that 2.5 kg = 2500 grams
So, number of sheets that would weigh 2.5 kg = $\frac{2500}{4}$
= 625.
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