In the department store, every pair of shoes with the original price of 1600 yuan is unsalable. The company decided to reduce the price by & nbsp; n%, but still can't sell them. Finally, the price was reduced by & nbsp; n% at the reduced price. As a result, the price of each pair of shoes was 1024 yuan=______ ．

1600×（1-n%）（1-n%）=1024 （1-n%）2=1024÷1600 （1-n%）2=0.64 1-n%=0.8 n%=1-0.8 N = 20 answer: n = 20

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