Go go gold
Algebra
Level
1
The price of gold dropped from US$ 1600 /oz on April 2, 2013 to US$ 1369 /oz on May 22, 2013. Over this time period, how much (in US$ / oz) did gold drop by?
The answer is 231.
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1 solution
The drop (in $US /oz) is equal to 1 6 0 0 − 1 3 2 9 = 2 3 1 .