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Population of a town increase 2.5% annually but is decreased by 0.5 % every year due to migration. What will be the percentage increase in 2 years?
- A5
- B4.04
- C4
- D3.96
Correct answer: B
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0
CCommunity
4.04
NA
NA
0
CCommunity
Solution:
Given: Population of the town increases 2.5% annually and decrease 0.5% per year due to migration.
So, the net increase in population = 2.5% - 0.5%
= 2% every year
Let the original population be 100.
After 1 year population would increase to,
=> 100 + 2% of 100
= 100 + 2
= 102
In the 2nd year the population would increase to,
= 102 + 2% of 102
= 102 + 2.04
= 104.04
So, by the end of two years the population is increased to,
= 104.04 - 100
= 4.04
Increased Percentage = (4.04/100) × 100
= 4.04 %
So, the correct option is B). 4.04
Given: Population of the town increases 2.5% annually and decrease 0.5% per year due to migration.
So, the net increase in population = 2.5% - 0.5%
= 2% every year
Let the original population be 100.
After 1 year population would increase to,
=> 100 + 2% of 100
= 100 + 2
= 102
In the 2nd year the population would increase to,
= 102 + 2% of 102
= 102 + 2.04
= 104.04
So, by the end of two years the population is increased to,
= 104.04 - 100
= 4.04
Increased Percentage = (4.04/100) × 100
= 4.04 %
So, the correct option is B). 4.04