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| 12 flags are around a track. Runners start at the first and reach the 8th in 8 seconds. How long to reach the 12th flag. Solution | |||||||||||
 
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Solution to runner's flags.
Not 12 seconds. There are 7 segments from the 1st flag to the 8th
and 11 segments from the first to the 12th. Each segment is run in 8/7
seconds so 11 segments takes 88/7= 12 & 4/7 seconds.
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