Between two bus stops

Wanda lives between two bus stops at three-eighths of their distance. He started the house today and found that he would have arrived at the bus stop if he had run to one or the other. The average bus speed is 60 km/h. What is the average speed of Wanda running today?

Correct answer:

v =  15 km/h

Step-by-step explanation:

s1=83s s2=ss1=85s  va=60 km/h  s1=v t1 s2=v t2  s3=va t1 s3+s=va t2 va t1+s=va t2  va s1/v+s=va s2/v va 83 s/v+s=va 85 s/v va 83/v+1=va 85/v va 83+v=va 85  v=va 85va 83  v=va (8583)=60 (8583)=15 km/h



Did you find an error or inaccuracy? Feel free to write us. Thank you!



Showing 1 comment:
Matematik
I bow to the author of the solution, it is brilliant :)





Tips for related online calculators
Looking for help with calculating arithmetic mean?
Looking for calculator of harmonic mean?
Looking for a statistical calculator?
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
Do you want to convert velocity (speed) units?
Do you want to convert time units like minutes to seconds?

You need to know the following knowledge to solve this word math problem:


 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions: