At exactly six o'clock, a spider started to walk at a constant speed from the hour hand anticlockwise round the edge of the clock face. When it reached the minute hand, it turned round (assume the turn was instantaneous) and walked in the opposite direction at the same constant speed. It reached the minute hand again after 20 minutes. At what time was this second meeting?

(In reply to re(2): speeds by Charlie)

Charlie,

Thanks for the response to this.  Stupid error on my part, I read 6 o'clock, but my mind thought midnight.  Thank you for correcting my English too.

Patrick

Posted by Patrick on 2006-05-09 09:07:02