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## Antique lamps

Math brain teasers require computations to solve.

 Puzzle ID: #333 Fun: (2.42) Difficulty: (1.87) Category: Math Submitted By: Phyllis

A collector of antique lamps bought two lamps, and then, discovering she was short of money, immediately had to sell them again. She sold each lamp for \$600. On one of the lamps she made 20% and on the other one she lost 20%. Did she make or lose money on the whole deal? How much?

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 stephiesd Dec 14, 2005 i knew that she lost money, i just didn't bother to figure out how much. elshawno May 09, 2006 ya, I thought since it was +20% and -20%, I figured it would be the same or lowered... what fun... Writer_fighter Aug 08, 2006 Knew right off the bat she lost money rrn0rrnrrnY Sep 06, 2006 I also knew she had a loss before actually computing. Poor lady sold them because she needed money, but didn't make any. Fun and funny teaser. javaguru Jan 29, 2009 In addition to being intuitively evide t that she lost money, it is easy to determine the fraction. One lamp cost 5/6 of its selling price, the other cost 5/4 of its selling price. Since both lamps sold for the same amount, the lamps cost 5/6 x 5/4 = 25/24 of the selling price, so she lost 1/24 x 1200 = 50. wwestar1000 Aug 10, 2010 i literally guessed 50\$!