No smoke

Tobacco company NO-SMOKE adorned its stand at the cigarette-type trade fair with cigarette-shaped. The dimensions of which were 20 times the size of a regular cigarette. Regular cigarette contains 0.8 mg of nicotine. How much nicotine would a giant cigarette contain when filled with tobacco?

Correct answer:

m =  6400 mg

Step-by-step explanation:

$$\begin{gathered} m_1=0.8\text{mg} \\ k=20^3=8000 \\ m=k\cdot m_1=8000\cdot 0.8=6400\text{mg} \end{gathered}$$

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