Question

30% of the mass of an object is 24 kilograms. Use this fact to find 10% of the mass​

Answer 1

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let the mass be x !

`\underline{30\% \: of \: x = 24} \\ \\ (30)/(100) * x = 24 \\ \\ \implies \: x = \cancel{24} * (10\cancel0)/(\cancel3\cancel0) \\ \\ \implies \: x = 8 * 10 \\ \\ \implies \: x = 80`

now ,

we got the value of x as 80 kilograms !

then ,

`10\% \: of \: 80 \: kilograms \\ \\ \longrightarrow \: \frac{\cancel{10}}{\cancel{100}} * 8\cancel0 = \bold\red{8 \: kilograms}`

hope helpful ~