• 2021 April(D05) Math Question 42

    Word Problems

    - Distance, Speed, Time

    Pythagorean Theorem and Special Right Triangles, Speed, Distance, and Time
    Choice H
    42. The figure shown below represents the route traveled on July 16. Aaron started at the office, drove 75 miles due north to the 1st stop, then 40 miles due east to the 2nd stop, and then 105 miles due south to the last stop. On his return trip, Aaron drove a straight road from the last stop to the office without stopping. Given that Aaron drove at the truck’s average speed, which of the following values is closest to the time, in hours, Aaron drove on the return trip?
    Distance={402+302}=50Distance =\sqrt\{40^2+30^2\}=50
    Time={{Distance}}{{Speed}}={50}{50}=1Time = \frac\{\{Distance\}\}\{\{Speed\}\}=\frac\{50\}\{50\}=1

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