Question 161557: If a grandfather clock takes five seconds to strike 6 o'clock, how many seconds will it take to strike 12 o'clock?
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! If a grandfather clock takes five seconds to strike 6 o'clock, how many seconds will it take to strike 12 o'clock?
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The "trick" here is that there are 5 intervals between strikes for 6, and 11 for 12.
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1st strike at 6.
1 interval between 1 & 2
1 interval between 2 & 3
1 interval between 3 & 4
1 interval between 4 & 5
1 interval between 5 & 6
Done at 6:00:05
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5/5 = 1 seconds per interval
At 12, there are 11 intervals.
11*1 = 11 seconds.
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