DIRECTIONS for questions 6 – 10: Refer to the following graph related to the percentage of persons over 25 years of age and with more than 4 years college education living in country X.
What percentage of persons of 25 and over completed 4 years of college or more in 1970?
A. 7%
B. 10%
C. 11%
D. 12.5%
Answer: C By visual observation, 11% of person of 25 and over completed 4 years of college or more in 1970.
What was the average percentage increase per year from 1970 to 1980?
A. 0.5%
B. 5%
C. 0.7%
D. 2%
Answer: B %age in year 1980 = 16.5. %age in year 1970 = 11%. Percentage increase = (16.5 – 11) / 11 = 50% Average % age increase over 10 years = 50/10 = 5%
If in 1987, a typical state had 125,000 persons of 25 and over with 4 years of college or more. What population of the state was 25 and over?
A. 375,000
B. 475,000
C. 625,000
D. 525,000
Answer: C In 1987, 20% of persons and over with 4 years of college and more i.e. 1,25,000 persons(given). 20% of population in 1987 = 1, 25,000. Total population = 100 x 125000 / 20 = 6,25,000
What was the percent increase in the percentage of persons of 25 and over completing 4 years of college or more between 1960 and 1989?
A. 100%
B. 150%
C. 200%
D. 300%
Answer: C %age in year 1960 = 7%, %age in year 1989 = 21%, %age increase = 100 x (21 – 7) / 7 = 200% (approx.)
If some other country had three times as many people of 25 and over in 1989 as the country X with the same number of persons completing 4 years of college or more, what percentage of that country’s people of 25 and over would complete college?
A. 7%
B. 5%
C. 9%
D. Can’t say
Answer: A If country X had 100 people over 25 in year 1989, then 21 were educated. The other country has 300 people over 25. The number of educated is still 21. So, as a %age that works out to 21/300 × 100 = 7%.