Tourism in the '90s In the 1990s, significant numbers of tourists traveled from the North America and Asia to Australia and South Africa. In 1998, a total of 2,230,000 of such tourists Visited Australia, while 390,000 of them visited south Africa. Also 630,000 of such tourists came from North America, and total of 2,620,000 tourists traveled from such two regions to these two destinations. (Suppose no single tourist visited both destination or traveled from both North America and Asia.)

a. The Give infromation isn't sufficient to find out the number of tourists from each destination.Why?

b. If you were given the additional onformation that total of 1,990,000 tourists came from Asia, would you now be able to determine the number of tourists from each region to each destination? if so, what are these numbers?

c. If you were given the additional information that 200,000 tourists visited South Africa from Asia, would tou now be able to determine the number of tourists from each region to each destination? if so, what are these numbers?