bonanova Posted April 13, 2015 Report Share Posted April 13, 2015 A clock is observed. The hour hand is exactly at a minute mark, and the minute hand is six minutes ahead of it. Later, the clock is observed again. This time, the hour hand is exactly on a different minute mark, and the minute hand is seven minutes ahead of it. How much time elapsed between the first and second observations? Quote Link to comment Share on other sites More sharing options...
0 wolfgang Posted April 13, 2015 Report Share Posted April 13, 2015 the first position was 1:12 and the 2nd position was 3:24 and the difference between them is 2hours and 12 Min. Quote Link to comment Share on other sites More sharing options...
0 dgreening Posted April 13, 2015 Report Share Posted April 13, 2015 (edited) Actually the second time the minute hand was 7 minutes BEHIND the hour hand first position 1:12 second position 8:36 elapsed time 7:24 [assuming it was in the same 12 hour period] Edited April 13, 2015 by dgreening Quote Link to comment Share on other sites More sharing options...
0 dgreening Posted April 15, 2015 Report Share Posted April 15, 2015 Actually the second time the minute hand was 7 minutes BEHIND the hour hand first position 1:12 second position 8:36 elapsed time 7:24 [assuming it was in the same 12 hour period] I guess it helps if you read the OP correctly! DUH Quote Link to comment Share on other sites More sharing options...
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bonanova
A clock is observed.
The hour hand is exactly at a minute mark, and the minute hand is six minutes ahead of it.
Later, the clock is observed again.
This time, the hour hand is exactly on a different minute mark, and the minute hand is seven minutes ahead of it.
How much time elapsed between the first and second observations?
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