SOLUTION: The yearly changes in the population of a city for three consecutive years are respectively, 20% increase, 30% increase, and 20% decrease. What is the total percent change from the

Question 490014: The yearly changes in the population of a city for three consecutive years are respectively, 20% increase, 30% increase, and 20% decrease. What is the total percent change from the beginning to the end of the third year?
Found 2 solutions by stanbon, deborabr:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
duplicate
Answer by deborabr(181) (Show Source): You can put this solution on YOUR website!
in the first year has 20% increase
in the second year has 30% increase but in relation the beginnig has 20% of the first year more 30% of the second year, so has 50%
and in the third year has 20% decrease but has the 50% of the second and first years so now has 50% less 20%
from the beginning to the end change 30%
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