Respuesta :

[tex]\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}[/tex]

let the mass be x !

[tex]\underline{30\% \: of \: x = 24} \\ \\ \frac{30}{100} \times x = 24 \\ \\ \implies \: x = \cancel{24} \times \frac{10\cancel0}{\cancel3\cancel0} \\ \\ \implies \: x = 8 \times 10 \\ \\ \implies \: x = 80[/tex]

now ,

we got the value of x as 80 kilograms !

then ,

[tex]10\% \: of \: 80 \: kilograms \\ \\ \longrightarrow \: \frac{\cancel{10}}{\cancel{100}} \times 8\cancel0 = \bold\red{8 \: kilograms}[/tex]

hope helpful ~