Population of a town is 176400. If it increases at the rate of 5% per annum, what will be its population 2 years hence ? What was the population 2 years ago?

Present population = 176400r=5%t = 2 yearSI=prt100=176400×5×2100=17640So after two year the population will be =176400+ 17640=194040Now let the population was x before two year So, SI=x×5×2100=x10x+x10=17640011x=1764000x=160363.6~160364

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After 2 years, 194481

before 2 years, 160000
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