-------------------------Trivia #160---------------------
2015 coins, all with the tail shown, were lined-up on a table. A series of flipping were done. For each nth flipping, the coins whose positions are divisible by n were flipped. After the 2015th flipping, how many coins are showing head?
----------------------3/18/2015------------------------
from Math Trivia on Facebook
2015 coins, all with the tail shown, were lined-up on a table. A series of flipping were done. For each nth flipping, the coins whose positions are divisible by n were flipped. After the 2015th flipping, how many coins are showing head?
----------------------3/18/2015------------------------
from Math Trivia on Facebook
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