Study the chart and answer the questions below it.
The total growth in Revenue for the water sector between 1994 and 2000 is equivalent to what constant annual rate of growth?
Correct answer: B
Explanation Revenue for water sector in 1994 = 13.4m In 2000 = 16m 6 yrs growth rate = (16 -13.4)/13.4 x 100 = 20% Annual growth rate = 20% ÷ 6 = 3.3%
Approximately how much revenue did Greenco generate per company on average in 1994?
Explanation Total revenue generated in 1994 = 13.4m + 4.6m + 9.0m = 27m Number of companies = 72 Revenue generated per company = 27m ÷ 72 = 375,000
How many more Euros operating profit did Greenco generate per Water Company in 2000 than in 1994?
Explanation Operating profit generated per water company in 1994 = - 0.2/25 = - 0.008m
In 2000, 2.0m/20 = 0.1m = 0.1 + 0.008 = 0.108m = 108,00
If the increase in global passenger air traffic continues at the curren rate, approximately how many annual air passengers (billions) will there be in 5 years time?
Correct answer: C
Explanation Current rate = 67% (from previous question) Number of passengers = 3.5b In 5 years time, we have 1.67 x 3.5b = 5.83
What is the percentage increase in global passenger air traffic over the past five years?
Correct answer: D
Explanation (Total passenger today -total passenger 5 yrs ago)/total passengers 5 yrs ago = (3.5 -2.1)/2.1 = 67%
