Question

How to get optimum time of two location with different speeds?

Answer 1

Answer:

Explanation:

traveled distance=D=100

time taken=t=10

t=time on foot+time on bike=tf+tb

D=10*time on foot+40*time on bike=10tf+40tb

100=10tf+40tb => tf=10-4tb

edit: time taken was actually 5, not 10, but the idea is the same