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Exploring The
Denali Region Unit

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Travel Time Math
Online Tests

Travel Time: How Long? (Advanced Questions)


  Remember:
  - Each person starts at mile 3.4 of the park road
  - The overlook is at mile 9.4 of the park road
  - It is uphill the entire way from the parking lot to the overlook


Debbie, an Iditarod musher, travels at 12 miles per hour when her dog team is going uphill, and 15 miles per hour when traveling downhill.

Mike can snowshoe at 2 miles an hour going up hill, and 3 miles per hour going downhill.

Jerry can ski at 9 miles per hour going up hill and 24 miles per hour going downhill.

Ellie drives the park road at 30 miles per hour in her bus, going the same speed uphill and downhill.

Questions:
Where applicable, answer in #'s (example: '2', not 'two')

Assume each person stops for 30 minutes at the overlook

1. How long will it take Debbie to complete the 12-mile round trip?
Minutes

2. How long will it take Mike to complete the 12-mile round trip?
Minutes

3. How long will it take Jerry to complete the 12-mile round trip?
Minutes

4. How long will it take Ellie to complete the 12-mile round trip?
Minutes

5. Hannah wants to see wolves, but doesn't have much time to travel in the park. She knows, however, that the sound of a motor scares wolves away, and if she wants to spot some, she should utilize a non-motorized form of transportation. What should she use?
A Dog Team
Snowshoes
Skis
A Bus

Given her choice of transportation, what season should Hannah plan to visit Denali?
Summer
Winter


6. Debbie and Mike leave the trailhead at the same time, and both travel to the Mt. McKinley overlook and back. Debbie knows it will take Mike longer to travel the trail, because her dog team travels faster than him on his snowshoes. This means she will have to wait for him after she returns from her run.

How many minutes will Debbie have to wait for Mike?
Minutes