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Euclid's Puzzle Answer

The donkey was carrying five sacks and the mule was carrying seven!

Suppose the donkey carries x sacks and the mule y. Then the mule tells us two things;

Y+1=2 (x-1)


The second equation tells us that y=x+2. Now the first equation tells us that x+3=2x-2, which implies that x=5.

So y=7.

Donkey & Mule

Back to question.

As seen on page 224, Professor Stewart's Hoard of Mathematical Treasures