The population of a place in a particular year increased by 15%. Next year, it decreased by 15%. Find the net increase or decrease perfect in the initial population.
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formula is +-x +-y +-(x×y)/100
=15-15 -15×15/100
= 0 - 225/100
= - 2.25% decrease in two years ....
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=15-15 -15×15/100
= 0 - 225/100
= - 2.25% decrease in two years ....
visit my blog ...
https://lifekaafundaa.blogspot.com
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