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## Sagot :

we know that

[tex]25\ grams[/tex] represent a [tex]100\%[/tex] percentage

so

by proportion

[tex]\frac{100}{25} \frac{\%}{grams} =\frac{x}{4} \frac{\%}{grams} \\ \\25*x=4*100\\ \\x=4*100/25\\ \\x=16\%[/tex]

therefore

__the answer is__

**[tex]16\%[/tex]**