During one year, the population of town increased by 5% . If the total population is 9975 at the end of the second year , then what was the population size in the beginning of the first year ? Choose the correct option
A) 50000  B) 10000  C) 90000  D) 70000  E) 120000
Population in the beginning of the first year   = 9975/[1+(5/100)]*[1-(5/100)]   = [9975*(20/21)*(20/19)]   9975/ 1+(5/100) * 1-(5/100)= 
<gadget id="calculator">9975/ 1+(5/100) * 1-(5/100)</gadget>
<output>9_975</output>
[9975*(20/21)*(20/19)= 
<gadget id="calculator">9975*(20/21)*(20/19)</gadget>
<output>10_000</output>
10000.   Answer is 10000.
<result>B</result>
During one year, the population of town increased by 5% . If the total population is 9975 at the end of the second year , then what was the population size in the beginning of the first year ?