Sunday, September 11, 2011

SureFooted Puzzle2

A military column of 1 km length marches with a constant speed of 6 kilometers per hour. A courier from the back of the column is sent to the head of the column by bike to deliver a message. Arrived at the front, he instantly returns. When he returns again at the back, the column has travelled a distance of 1 km since the start of his errand. The courier drove with constant speed.
How fast did the courier bike drove?

Kindly post your answer at Facebook page under one comment only, please don't start a fresh comment chain.
Also share it with your friends to get more participation and bonus points.

No comments: