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In ancient Rome they used the following units of length:
5 pedes = 1 passus,
125 passus = 1 stadium.
The atrium (courtyard) of Marcus' home was a square with each side 50 pedes long.
How many times did Marcus have to walk round his atrium to complete his daily exercise of 8 stadia?
If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.
An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
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