Classical IQ test
A laboratory culture doubles in size every 6 hours. At the end of 24 hours, the culture reaches its maximum capacity. After how many hours was the culture one-eighth of its maximum size?
90%
Correct!
Incorrect!
18 hours earlier was 6, so after 6 hours it was one-eighth of its maximum capacity.
A laboratory culture doubles in size every 6 hours. At the end of 24 hours, the culture reaches its maximum capacity. After how many hours was the culture one-eighth of its maximum size?
6 hours
12 hours
18 hours
21 hours
90%
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