# Demographics

The population grew in the city in 10 years from 30000 to 34000. What is the average annual percentage increase in population?

### Correct answer:

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#### You need to know the following knowledge to solve this word math problem:

**algebra**- exponential equation
- geometric progression
- expression of a variable from the formula
**basic functions**- percentages
- logarithm
- exponential function

#### Units of physical quantities:

#### Grade of the word problem:

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