the population of a village was 20,000 two years ago.it increased by 10% in the first year but decreased by 10% in the second year.find the population at the end of 2 years?
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Answered by
10
Two years ago it was 20000
after increase of 10% the population becomes 20000 + 10/100 of 20000
= 20000 + 2000 = 22000 population at the end of 1st year
population after decrease of 10% = 22000 - 10/100 of 22000
= 22000 - 2200 = 19800
population today = 19800
inhumandrowsey:
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Answered by
5
10% of 20000 is 2000 then it will become 22000 for first year
10% of 22000 is 2200 while deduction from 220000 it will be 19800 is the answer.
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