On January 1st, Jerome concocts a rumor and tells Beth. On January 2nd, they each tell a new person. By the end of January 2nd, four people have heard the rumor. On each subsequent day, each person who has heard the rumor spreads it to a new person.

How many people have heard the rumor by the end of January 8th?

Question

On January 1st, Jerome concocts a rumor and tells Beth. On January 2nd, they each tell a new person. By the end of January 2nd, four people have heard the rumor. On each subsequent day, each person who has heard the rumor spreads it to a new person. 

How many people have heard the rumor by the end of January 8th?

anonymous · Answer

It seems like the number doubles.

anonymous · Answer

Once two people know it, 2 more people know it. Once 4 people know it, 4 more people know it... And so on.

anonymous · Answer

Yes, since this is exponential growth. :o

anonymous · Answer

However, could you tell me the number for January 8th?

anonymous · Answer

Num. Ppl. 1,2,4,8,16,32,64,128
Jan:           1,2,3,4,5,  6,   7,   8.

anonymous · Answer

Yep.  Simply set up a table for these things! Like @kaelllcox  did.  Good job.

anonymous · Answer

Thanks you all!

anonymous · Answer

No problem. :)

anonymous · Answer

Yep, No problem