The population of a town is 1,25,000. If the annual birth rate is 12.7% and the annual death rate is 2.7%, how much will the
population increase after 3 years?
This questions was previously asked in
SSC CPO 9th Nov 2022 Shift 2
Explanation:
- The initial population of the town is 125,000.
- The annual birth rate is 12.7%, so births add to the population.
- The annual death rate is 2.7%, so deaths subtract from the population.
- The net annual growth rate is (12.7% - 2.7%) = 10%.
- Population growth over 3 years can be calculated using compound growth.
\[ \text{Population after 3 years} = 125,000 \times (1 + 0.10)^3 \]
- Calculate:
\[ 125,000 \times 1.1^3 = 125,000 \times 1.331 = \text{166,375} \]
- The increase in population = 166,375 - 125,000 = 41,375
- Given options:
1. 43,285
2. 41,375
3. 42,565
4. 40,275
Correct Answer: Option 2 - 41,375
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By: santosh