Question

Refer to the graph above and answer the questions that follow.
If 20% of oil produced by the OPEC countries is imported by U.S., which makes 90% of its total oil imports, what was total oil imports of U.S. in year 1998?

• A. 4500 mb
• B. 900 mb
• C. 3600 mb
• D. 2700 mb
• E. None of these

Answer 1

The correct option is C 3600 mb

Total oil produced by OPEC in year 1998 = 45 mb/day
Oil imports by U.S.= 0.2 x 45 = 9 mb/day
Total oil imports by U.S = $\frac{9}{0.9}$ = 10 mb/day
Total oil imports in year 1998 = 10 x 360 = 3600 mb. Hence, [c].