... The pie chart describes data about visitor’s age, according to the age groups 2 0- 30, 3 0- 40, 4 0- 50, 5 0-6 0 and 6 0- 70.It is highlighted in a pie. Travelers were under 40 year old visited Hanoi ... 4 0- 50 and next group 5 0- 60 still unchanged, just 8, 3%, there was 2 lowest groups. Finally, at the last group (6 0- 70) the proportion of people visited Hanoi increased 2 times with 4 0- 50, ... University exam. We know that is good environment to study tourism. When we study at Faculty of Tourism, we have been provided the basic knowledge to prepare our future job. Our University has...