Overview: 1 questions will be solved this time.Among them
           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (1-x)*100*100*(1+8/5*x) ≥10260 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 1 - x ) * 100 * 100 * ( 1 + 8 / 5 * x ) ≥10260         (1)

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    From inequality(1)：
         1/20 ≤ x ≤ 13/40

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    The final solution set is :
         1/20 ≤ x ≤ 13/40

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