The population of a town increased by 15% per annum for two years and then it decreased by 15 %per annum for two years. Find out the percentage increase or decrease in the population at the end of the fourth year.
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Answer:
4.44% decrease
- Step-by-step explanation: population= 100 (if)
- 15% increase 2 times then 15% decrease 2 times
- ANS = ( 100 x 115 x 115 x 85 x 85 ) / ( 100 x 100 x 100 x 100)
- = 95.55
- so the ans is below 100 which i choose as population in first
- so the ans will be = (100-95.55)= 4.44%
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