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Sagot :
Answer
Find out the ratio of sharpened pencils to unsharpened pencils .
To proof
As given
In a box of 36 pencils, 20 are sharpened
Number of unsharpened pencil = 36 -20
= 16
Now find out the ratio of sharpened pencils to unsharpened pencils .
[tex]\frac{sharpened\ pencil}{unsharpened\ pencil} = \frac{20}{16}[/tex]
simplify
[tex]\frac{sharpened\ pencil}{unsharpened\ pencil} = \frac{5}{4}[/tex]
Therefore the ratio of sharpened pencils to unsharpened pencils is 5 :4 .
Hence proved
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