a store sells only black and blue pens. the store sold 300 black pens last week. this was 2/5 of the number of pens sold. how many blue pens were sold?

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asked May 20, 2019 37.4k views

3 votes

a store sells only black and blue pens. the store sold 300 black pens last week. this was 2/5 of the number of pens sold. how many blue pens were sold?

Mathematics
middle-school

Vasily Hall asked

by Vasily Hall

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1 Answer

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Hi,

$300 / 2 = 150 \\ 150 * 5 = 750 \\ 750 - 300 = 450$
There ware 450 blue pens sold.

Hope this helps.
r3t40

Froilan answered May 24, 2019

by Froilan

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