Q: What will the population of a town be in two years if it has a current population of 1,76,400 and grows at a rate of 5% per year, and what was the population of the town two years ago?
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A
100000
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B
160000
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C
200000
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D
150000
B
Answer:
B
Explanation:
Population after 2 years = 176,400 * (1 + 5/100)^2
= 176,400 * (21/20) * (21/20)
= 194,481
Population 2 years ago = 176,400 / (1 + 5/100)^2
= 176,400 * (20/21) * (20/21)
= 160,000
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