Stage: 2 Challenge Level: 
During the third hour after midnight the hands on a clock pointed in the same direction (so one hand was over the top of the other).
At what time, to the nearest second, did this happen?
Working systematically. Addition & subtraction. Multiplication & division. Angles. Trial and improvement. Time. Clock. Speed. Combinations. Length/distance.
Published January 2000,January 2009.
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