Chain emails are emails with a message suggesting you will have good luck if you forward the email on to others.

Suppose a student started a chain email by sending the message to 3 friends and asking those friends to each send the

same email to 3 more friends exactly 1 day after receiving it.

b. Which day is the first day that the number of people receiving the email exceeds 100?

Question

Mathematics

Joyce Higgins

18 October, 04:10

Chain emails are emails with a message suggesting you will have good luck if you forward the email on to others.

Suppose a student started a chain email by sending the message to 3 friends and asking those friends to each send the

same email to 3 more friends exactly 1 day after receiving it.

b. Which day is the first day that the number of people receiving the email exceeds 100?

+4

Answers (1)

Know the Answer?

Tessa Frey · Answer 1

b.

starts with student-day one

3*3=9-day two

9*3=27-day three

27*3=81-day four

81*3 = over 100 - day five

it's day 5 unless you count the first student sending the message as day 0, if so then your answer is day 4