What was the % increase in the population of City K from 1980 to 1990?
1) In 1970 the population of City K was 160,000.
2) In 1980 the population of City K was 20% greater than it was in 1970, and in 1990 the population of City K was 30% greater than it was in 1970.
Statement 1) Not Sufficient
Statement 2) [(P90 - P80)/P80] * 100
[(P70+0.3P70)-(P70+0.2P70]) / 1.2P70 * 100
As i simplify the above I get i get 8.5 %
Is my approach right?
1) In 1970 the population of City K was 160,000.
2) In 1980 the population of City K was 20% greater than it was in 1970, and in 1990 the population of City K was 30% greater than it was in 1970.
Statement 1) Not Sufficient
Statement 2) [(P90 - P80)/P80] * 100
[(P70+0.3P70)-(P70+0.2P70]) / 1.2P70 * 100
As i simplify the above I get i get 8.5 %
Is my approach right?
