Overview: 2 questions will be solved this time.Among them
           ☆2 inequalities

[ 1/2Inequality]
    Assignment:Find the solution set of inequality 65a+54(40-a) ≤2336 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        65 * a + 54 * ( 40 - a ) ≤2336         (1)

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    From inequality(1)：
         a ≤ 16

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    The final solution set is :
         a ≤ 16
[ 2/2Inequality]
    Assignment:Find the solution set of inequality a ≥（40-a）/2 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         a ≥ ( 40 - a ) / 2         (1)

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    From inequality(1)：
         a ≥ 40/3

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    The final solution set is :
         a ≥ 40/3

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