เฉลยข้อที่ 9
(a)
|
จุดที่เลือก
|
New York
|
Boston
|
Miami
|
Atlanta
|
Chicago
|
Los Angeles
|
Denver
|
San Francisco
|
|
เริ่มต้น
|
0
|
¥
|
¥
|
¥
|
¥
|
¥
|
¥
|
¥
|
| New York |
|
0.5
|
2.45
|
1.55
|
1.50
|
3.5
|
¥
|
4.05
|
| Boston |
|
|
2.45
|
1.55
|
1.50
|
3.5
|
¥
|
4.05
|
| Chicago |
|
|
2.45
|
1.55
|
|
3.5
|
3.6
|
4.05
|
| Atlanta |
|
|
2.45
|
|
|
3.5
|
3.6
|
4.05
|
| Miami |
|
|
|
|
|
3.5
|
3.6
|
4.05
|
| Los Angeles |
|
|
|
|
|
|
3.6
|
4.05
|
| Denver |
|
|
|
|
|
|
|
4.05
|
| San Francisco |
|
|
|
|
|
|
|
|
สั้นที่สุดจาก New York ไป Los Angeles คือ 3.5
(b)
|
จุดที่เลือก
|
Boston
|
New York
|
Miami
|
Atlanta
|
Chicago
|
Denver
|
Los Angeles
|
San Francisco
|
|
เริ่มต้น
|
0
|
¥
|
¥
|
¥
|
¥
|
¥
|
¥
|
¥
|
| Boston |
|
0.5
|
¥
|
¥
|
2.10
|
¥
|
¥
|
¥
|
| New York |
|
|
2.95
|
2.05
|
2.00
|
¥
|
4.00
|
4.55
|
| Cgicago |
|
|
2.95
|
2.05
|
|
4.10
|
4.00
|
4.55
|
| Atlanta |
|
|
2.95
|
|
|
4.10
|
4.00
|
4.55
|
| Miami |
|
|
|
|
|
4.10
|
4.00
|
4.55
|
| Los Angeles |
|
|
|
|
|
4.10
|
|
4.55
|
| Denver |
|
|
|
|
|
|
|
4.55
|
| San Francisco |
|
|
|
|
|
|
|
|
สั้นที่สุดจาก Boston ไป San Francisco คือ 4.55
(c)
|
จุดที่เลือก
|
Miami
|
Boston
|
New York
|
Atlanta
|
Chicago
|
Los Angeles
|
San Francisco
|
Denver
|
|
เริ่มต้น
|
0
|
¥
|
¥
|
¥
|
¥
|
¥
|
¥
|
¥
|
| Miami |
|
¥
|
2.45
|
1.30
|
¥
|
¥
|
¥
|
¥
|
| Atlanta |
|
¥
|
2.45
|
|
2.70
|
¥
|
¥
|
¥
|
| New York |
|
2.95
|
|
|
2.70
|
5.95
|
¥
|
¥
|
| Chicago |
|
2.95
|
|
|
|
5.95
|
5.25
|
4.80
|
| Boston |
|
|
|
|
|
5.95
|
5.25
|
4.80
|
| Denver |
|
|
|
|
|
5.95
|
5.25
|
|
| San Francisco |
|
|
|
|
|
5.95
|
|
|
| Los Angeles |
|
|
|
|
|
|
|
|
สั้นที่สุดจาก Miami ไป Denver คือ 4.80
(d)
|
จุดที่เลือก
|
Miami
|
Boston
|
New York
|
Atlanta
|
Chicago
|
Denver
|
San Francisco
|
Los Angeles
|
|
เริ่มต้น
|
0
|
¥
|
¥
|
¥
|
¥
|
¥
|
¥
|
¥
|
| Miami |
|
¥
|
2.45
|
1.30
|
¥
|
¥
|
¥
|
¥
|
| Atlanta |
|
¥
|
2.45
|
|
2.70
|
¥
|
¥
|
¥
|
| New York |
|
2.95
|
|
|
2.70
|
¥
|
6.55
|
5.95
|
| Chicago |
|
2.95
|
|
|
|
4.80
|
5.25
|
5.95
|
| Boston |
|
|
|
|
|
4.80
|
5.25
|
5.95
|
| Denver |
|
|
|
|
|
|
5.25
|
5.95
|
| San Francisco |
|
|
|
|
|
|
|
5.95
|
| Los Angeles |
|
|
|
|
|
|
|
|
สั้นที่สุดจาก Miami ไป Los Angeles คือ 5.95