Insight · ★☆☆☆☆ · ~2 min
The Horse Trader
Buy, sell, buy back, sell again. Simple arithmetic — yet this puzzle once split an entire newspaper's readership.
by MindYourPuzzle
A man buys a horse for $60 and sells it for $70.
Then he buys it back for $80 and sells it again for $90.
How much profit did he make in total? (Answer in dollars.)
dollars
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