Question 339837
a bus stops at every third corner.Another bus stops at every eighth corner. if both buses start at the same place,how many blocks from the starting point will both buses stop? 
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It's 3 * 8 = 24 stops
The 1st bus stops at 3,6,9,12,15,18,21,24
The 2nd bus stops at 8, 16, 24
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24 is the stop they'll both use (using zero for the starting point).
Then 48, 72, etc, multiples of 24.