Showing posts with label Semaphore. Show all posts
Showing posts with label Semaphore. Show all posts

Thursday, October 2, 2008

Round 281

Date Released: October 2nd, 2008.
Date Rewarded: October 9th, 2008.

Walking into Chesterdrawer's Antiques, you notice several clocks on the wall. The first clock reads 9:00, the second reads 6:07, the third 10:45, the fifth 7:45, the sixth 7:52, and the seventh 4:37.

What should the fourth clock read?


Prize


Grandfather Clock

Click to show/hide solution

First we convert the clock time into position of hour and minute hands of 12 hour dial face. Then, we use the Flag Semaphore Character chart [1] to decode the hands.

ABCDEF
GHIJKL
MNOPQR
STUVWX
YZ


9:00 => P
6:07 => E
10:45 => O
(the 4th clock)
7:45 => H
7:52 =>I
4:37 => N

The word would be PEOPHIN (which is a name of a pet species). Therefore, the 4th letter is P which is the same as the first one. The answer is 9:00.

Results: 1885 people guessed the correct answer earning themselves 1062 NP each.

References:
[1] Flag Semaphore Characters