The population of a city in 2000 is 50,000. The average increase in population over last 8 decades is
7500 and average incremental increase during 8 decades is 750. The population of the city based
on incremental method, in the year 2020 will be
(A) 55,000
(B) 60,500
(C) 66,500
(D) 72,500