MathDB

Suppose that each of the 5 persons knows a piece of information, each piece is different, about a certain event. Each time person

A

calls person

B

A

gives

B

all the information that

A

knows at that moment about the event, while

B

does not say to

A

anything that he knew. (a) What is the minimum number of calls are necessary so that everyone knows about the event? (b) How many calls are necessary if there were

n

persons?

Problem Statement