We can solve this problem by applying the rule of 3.
If 10 out of 200 peasants had seen a Dane, x out of 150,000 had seen a Dane.
We can calculate x as:
[tex]\begin{gathered} 200\text{ peasants}\longrightarrow10\text{ seen Dane} \\ 150,000\text{ peasants}\longrightarrow x=\frac{10}{200}\cdot150,000=0.05\cdot150,000=7,500 \end{gathered}[/tex]Out of 150,000, 7,500 had seen a Dane. Then 150,000-7,500=142,500 peasants had never seen a Dane.
Answer: 142,500 peasants had never seen a Dane.
