cftan wrote:A man travels from town A to town B at an average speed of 4km/h and from town B to town A at an average speed of 6km/h. If he takes 45minutes to complete the entire journey, find his total distance travelled.

Distance = Speed x Time.

Time from A to B = Distance/4

Time from B to A = Distance/6

Total time = Distance/4 + Distance/6 = Distance (1/4 + 1/6) = 3/4 hr.

You can then work out the total Distance = Distance x 2.