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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality [(400*0.9)-300]*x+(324-300)*(100-x) <3210 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( ( 400 * 0.9 ) - 300 ) * x + ( 324 - 300 ) * ( 100 - x ) <3210         (1)

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    From inequality(1)：
         x < 45/2

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    The final solution set is :
         x < 45/2

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