Horse Trading

Frank sells Sue a horse for $60. Then he decides he wants it back, but Sue makes him pay $70 for it. Then Sue changes her mind and buys it back from Frank, but for $80 (Frank is no dummy). Finally, Frank buys it back from Sue for—you guessed it—$90 (Sue is no dummy, either). At this point, who comes out ahead?

Show/Hide Solution

Follow the money; H means that person has the horse.

   Frank   Sue 
  +60 -60 H
  -70 H +70
  +80 -80 H
  -90 H +90
Totals:  -20 H +20

So Sue comes out $20 ahead. Frank has his horse back, but he paid $20 to get it.

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