A man walked at a speed of 6 km/h from point A to B and came back from point B to A at the speed of 8 km/h. Find the ratio between the time taken by him in walking from point A to B to point B to A respectively.
1). 5 : 3
2). 2 : 3
3). 2 : 1
4). 3 : 2
Let assume the distance between point A to point B = x km.
We know, Distance = Speed × Time
⇒ Time = Distance/Speed
The man walked at a speed of 6 km/h from point A to B. Then, he would take time = x/6 hours.
And he came back from point B to point A at 8 km/h. Then, he would take time = x/8 hours.
∴The ratio between the time taken by him in walking from point A to B to point B to A
= (x/6) : (x/8) = 4 : 3