All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars
 perplexus dot info

 On the clock (Posted on 2007-03-23)
How many times per day, and at what time(s) do the hour and minute hands on a clock form EXACTLY a 60 degree angle?

 Submitted by Sing4TheDay Rating: 3.0000 (3 votes) Solution: (Hide) Four times. 2:00:00 A.M. 10:00:00 A.M. 2:00:00 P.M. 10:00:00 P.M. Since each second that ticks by, the minute hand moves 1/10 of a degree and the hour hound moves 1/120 of a degree, no other times are quite EXACTLY 60 degrees. It comes pretty close (within a few hundredths of a degree) numerous other times per (24 hour) day but not quite. Of course this all assumes an extremely accurate clock. :-)

 Subject Author Date No Subject arman 2012-12-14 06:32:14 answer K Sengupta 2007-09-20 16:12:03 re(3): ... and at what times Sing4TheDay 2007-04-11 17:38:39 re(2): ... and at what times Charlie 2007-04-01 21:16:05 re: ... and at what times Ady TZIDON 2007-04-01 03:21:34 ... and at what times Charlie 2007-03-23 09:07:51 per day = per night Ady TZIDON 2007-03-23 08:40:40

 Search: Search body:
Forums (0)