Engineering Board Exam Reviewer · Applications: Growth and Decay · medium
The population of a town grows at a rate proportional to its current size. It increases from 10,000 to 12,000 in 5 years. What is the population after 15 years?
- 16000
- 14400
- 17280
- 20736
Answer
C. 17280
Solution
P=P0ekt and e5k=12000/10000=1.2. After 15 years: P=10000(1.2)3=17,280.
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