Answer:
Therefore the coins were of yellow brass.
Explanation:
A sample weighted 129.6 g and had a volume of 15.3 cm³.
[tex]Density =\frac{mass }{volume}[/tex]
Here mass= 129.6 g and volume =15.3 cm³.
[tex]Density =\frac{129.6}{15.3}[/tex] g/cm³
=8.47 g/cm³
Given that the density of gold = 19.3 g/cm³
and density of yellow brass = 8.47 g/cm³
Since the density of the sample is equal to the density of yellow brass.
Therefore the coins were of yellow brass.
