Lesson OVERVIEW of additional lessons on Travel and Distance - section 3

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OVERVIEW of additional lessons on Travel and Distance - section 3


Below is the list of my additional lessons on  Travel and Distance  problems  (section  3)  in this site
    - Traveling on moving walkway
    - Two ships in parallel courses in ocean at restricted visibility
    - Three kids get home from school using a tandem bike and walk

List of additional lessons (section 3) with short annotations


Traveling on moving walkway

    Problem 1.  The speed of a moving walkway is typically about  2.5  feet per second.
                       Walking on such a moving walkway,  it takes  Judy a total of  40  seconds to travel  50  feet with the movement of the walkway
                       and then back against the movement of the walkway.  What is  Judy's normal walking speed?

    Problem 2.  The  Gare  Montparnasse train station in  Paris has a high-speed version of a moving walkway.
                       If he walks while riding this moving walkway,  Jean  Claude can travel  200  meters in  30  seconds
                       less time than if he stands still on the moving walkway.  If  Jean  Claude walks at a normal rate
                       of  1.5  meters per second,  what is the speed of the  Gare  Montparnasse walkway?

Two ships in parallel courses in ocean at restricted visibility

    Problem 1.  On a day when visibility was limited to  2500 m,  a ship of the  Blue  Line was traveling west,
                       on a parallel course to a ship of the  White  Line traveling east,  with the courses  700 m apart.
                       The  Blue  Line ship's velocity was  10 km/h.  If the ships were in sight of each other for  20  minutes,
                       what was the velocity,  in km/h,  of the  White  Line ship?


Three kids get home from school using a tandem bike and walk

    Problem 1.  Peter,  Reeta and  Nikita have two ways for getting home from school:  cycle on a tandem bike or walk.
                       The bike can carry either one or two riders at a time.
                       Regardless of the number of people pedaling,  cycling speed is  5  times walking speed.
                       The kids leave school at the same time and use the same path between school and home,
                       whether walking or cycling.  The school is  5  km from home and their walking speed is 4 kilometers per hour.

                       One day,  Peter and  Nikita ride the bike and  Reeta walks.  Peter drops  Nikita off at a certain point
                       leaving him to walk home.  Meanwhile he returns to pick up Reeta and they cycle home together.
                       If all three arrive home at the same time,  how far from school are the drop-off and pick-up points?


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