# Amoeba which self double every second and fills entire room in 1 hour. When will amoeba fill a half the room?

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If in a room there is an amoeba and he make him self double every second and will fill the entire room in 1 hour. When (in seconds) will amoeba fill a half the room?

posted Apr 21, 2015
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## 3 Answers

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Best answer

When 3599 seconds will amoeba fill a half the room, The next second is 3600, that is 1 hour so that is doubled and fill the room .

answer Apr 22, 2015
+1 vote

1 second less from 1 hour = 3600 - 1 = 3599

answer Sep 24, 2015 by
–1 vote

1800 seconds; 30 minutes.
In the next second the room will be completely filled.

answer Apr 21, 2015 by

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