Classical IQ test

Question 9 / 10 3 Minute Reveal 0%
9

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?

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?

Explanation

18 hours earlier was 6, so after 6 hours it was one-eighth of its maximum capacity.

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