SOLUTION: martian goo doubles its size every 5 minutes. at 9 am a small amount was placed in a container. at 10am the container was full. at what time is the container half full?

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Question 687697: martian goo doubles its size every 5 minutes. at 9 am a small amount was placed in a container. at 10am the container was full. at what time is the container half full?
Answer by fcabanski(1391) About Me  (Show Source):
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Work back from 10am. The container is full at 10am. The goo doubles in size, or working backwards halves in size, every 5 minutes. So the container was half full at 9:55 AM.

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