If population of certain city increases at the rate of 4%. If population in 1981 was 138910, then population in 1979 was? Choose the correct choice:	A) 12,0000	B) 130000	C) 128130	D) 627000	E) 12690
Explanation:   X * (104/100) * (104/100) = 138915   X = 138910/1.0816   X = 128130   Answer: Option 128130
<result>C</result>
If population of certain city increases at the rate of 4%. If population in 1981 was 138910, then population in 1979 was?