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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 435.67 <435.67(1+x%)*0.8 <435.67(1+15%) .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        435.67 <435.67 * ( 1 + x % ) * 0.8         (1)
        435.67 * ( 1 + x % ) * 0.8 <435.67 * ( 1 + 15 % )         (2)

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    From inequality(1)：
         x ＞ 25
    From inequality(2)：
         x < 175/4

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    From inequalities (1) and (2)
         25 < x < 175/4     (3)

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    The final solution set is :
         25 < x < 175/4

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