NURSING EXAM QUESTIONS
TOXICOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If Central Fremont has a growth rate of 1.6%, approximately how long will it take the town ‘s population of 35, 000 to double?
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5 years
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.4 years
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44 years
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22 years
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Explanation:
Detailed explanation-1: -For example, a population with a 2% annual growth would have a doubling time of 35 years.
Detailed explanation-2: -There is an important relationship between the percent growth rate and its doubling time known as “the rule of 70”: to estimate the doubling time for a steadily growing quantity, simply divide the number 70 by the percentage growth rate.
Detailed explanation-3: -The natural increase rate formula is the crude birth rate (CBR) minus the crude death rate (CDR). The crude birth rate (CBR) is the number of births per 1, 000 people in a population. The crude death rate (CDR) is the number of deaths per 1, 000 people in a population.
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