Bargain Houses

A man agreed to pay for 13 valuable houses worth $5000 each, what the last would amount to, reckoning 7 cents for the first, 4 times 7 cents for the second, and so on, increasing the price 4 times on each to the last.  Did he gain or lose by the bargain and how much?

Adam's New Arithmetic, Daniel Adams, 1848

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