⟩ A man walks at the speed of 4km per hour from point A to B and comes back from point B to A at the speed of 8km per hour. What is the ratio between the time taken by man from point A to B and B to A?
4 km/hr from A to B = s1
8 km/hr from B to A = s2
Speed = Distance/Time
s1 = d1/t1
s2 = d2/t2
s1/s2 = t2/t1
We need t1/t2 so,
Answer ratio is 2:1