Question

64 friends were told 64 news items at the same time (one news item per friend). They start calling each other and exchanging news. Each call lasts one hour. How long will it take for all the friends to know all the news? 
讗. 讗谞讙'讗谞住 

Difficulty level (1 very easy - 10 very hard): 4

Topics:
Logic -> Reasoning / Logic
Sources:
There are no comments yet.
Authentication required

You must log in to post a comment.

Log in