Nigeria has about 2,200 miles of railroad, but years of neglect of both the rolling stock and the right-of-way have seriously reduced the capacity to...

Nigeria has about 2,200 miles of railroad, but years of neglect of both the rolling stock and the right-of-way have seriously reduced the capacity to use the system. In part as the result of the failure of the railroad system, many of its 120,000 miles of roads are also barely usable. From this information, you know that: