Lingguo Bu

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Lingguo Bu

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GeoGebra [Open Source Dynamic Mathematics for Schools]

Problem of the Week

On an old-fashioned mechanic (analog) clock, at what time, if possible, do all the three hands come to the SAME location on the dial? Please assume that every 60 ticks of the second hand will make the minute hand move one minute and one second is the smallest mechanic movement.

Lingguo Bu © 2011

Disclaimer: This site is intended for the author's classes only and it represents only his personal view of mathematcs teaching and learning. It does not necessarily represent the view of the hosting site(s) or institution(s).