Problem: the population of a town increased from 50000 to 80000 in a decade . the average percent increase of population per year is :
Rationale: solution increase in 10 year = ( 80000 - 50000 ) = 30000 . increase % = ( 30000 / 50000 x 100 ) % = 60 % â ˆ ´ required average = ( 60 / 10 ) % = 6 % answer c
annotated_formula: divide(multiply(divide(subtract(80000, 50000), 50000), const_100), const_10)