Question

In recent years, the locals near the Tikal National Park area have been taking a constant look on the growing number of White-Nosed Coati population in the Park and the data has been graphed as shown above $(1992-2004)$. According to the data above, if the population of Coati in the protected region of Tikal National Park increased at the same rate from $2004-2006$ as it did from $2000-2004$, then what was the number of coati in the park in $2006$?

• A. $180$
• B. $190$
• C. $200$
• D. $210$

Answer 1

Answer: (C)

$200$

Seeing as per graph the the population of Coati Is increased from $2000-2004$ is $180-140=40$ Coati

Hence, the rate of increase $=\frac{40}{4}=10$ coatis/year

As per the question, rate of population increase of Coati $2004-2006$ is same as $2000-2004$

Then number of Coaties in the park in $2006=180+(10$ coatis/year $\times 2$ years$)=200$