During a recent track meet, Peter ran x meters of the 100 meter dash in 7 seconds; running at the ...

During a recent track meet, Peter ran x meters of the 100 meter dash in 7 seconds; running at the same rate, how many seconds will it take Peter to run z meters of the 200 meter dash?

Quiz

Answer/Solution

7z/x

Steps/Work

Speed of Peter = x/7 meters per second
Time needed to run z meters = DISTANCE/SPEED = z / (x/7) =7z/x
Option C
The values 100m and 200m have no role to play here and are just given to confuse you.