Gloves

I have a box with two hundred pieces of gloves in total, split into ten parcels of twenty pieces, and I sell three parcels. What percent of the total amount I sold?

Correct answer:

x =  30 %

Step-by-step explanation:

$x=100\cdot \frac{3}{10}=\frac{100\cdot 3}{10}=\frac{300}{10}=30\%$

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