SOLUTION: If each of them tells 1 person, and then everybody tells exactly 1 other person, and so on, how long will it take until all 450 students in the school hear the rumor? Assume that t

Question 1029066: If each of them tells 1 person, and then everybody tells exactly 1 other person, and so on, how long will it take until all 450 students in the school hear the rumor? Assume that the rate for telling the next person is 1 hour. That is, initially Jack and Jill know; after 1 hour, 2 more people know; after 2 hours, 2 more people know
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The total number of people after each hour is:
(0)
(1)
(2)
(3)
-----------------------
I notice that at hour number ,
the total that hear rumor is
--------------
I can say:

All 450 students hear rumor after
6 hrs and 49 min
------------------
check:

error due to rounding off
You might want a 2nd opinion on this
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