Suppose your friend starts a rumor by telling you some juicy gossip Sunday night. On Monday, one of you shares the gossip with 2 more friends. The next day, they each share the rumor with 2 of their friends, so 4 more people hear the rumor on Tuesday. On Wednesday, those people each share the rumor with 2 of their friends, so now 8 more people have heard the rumor.

If the rumor continues to spread this way, how many people will hear the rumor on Saturday?

sixteen

thirty-two

sixty-four

one hundred twenty-eight

Question

Suppose your friend starts a rumor by telling you some juicy gossip Sunday night. On Monday, one of you shares the gossip with 2 more friends. The next day, they each share the rumor with 2 of their friends, so 4 more people hear the rumor on Tuesday. On Wednesday, those people each share the rumor with 2 of their friends, so now 8 more people have heard the rumor.

If the rumor continues to spread this way, how many people will hear the rumor on Saturday?

sixteen

thirty-two

sixty-four

one hundred twenty-eight

anonymous · Answer

thirty two or sixty four.... Not really sure.

lgbasallote · Answer

1,2,4..i'd like to avoid the e^kt thingy as much as possible so i'll use geometric sequencing...

An = A1r^n-1

Saturday is the 7th day so...

A7 = 1(2^6)
A7 = 64