# In 1938 in Polotsk there were 30 thousand itel, and in their 2009 there were 81.7 thousand. By how many percent did the population of Polotsk during this time increase?

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181

30000 = 100 - there was a population 81700= x x =81700*100/30000 h272.33 - became the population 100-272.33=-172.33 Answer: the population increased approximately by 172.33

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