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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality N/(0.895*102446)+400*N/(1.05*1430000*(1-0.8*N/14980)) <310 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         N / ( 0.895 * 102446 ) + 400 * N / ( 1.05 * 1430000 * ( 1 - 0.8 * N / 14980 ) ) <310         (1)
        From the definition field of divisor
         1.05 * 1430000 * ( 1 - 0.8 * x / 14980 ) ≠ 0        (2 )

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    From inequality(1)：
         N ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!
    From inequality(2)：
         N ∈ R （R为全体实数），即在实数范围内，不等式恒成立！

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    From inequalities (1) and (2)
         N ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!    (3)

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    The final solution set is :
         N ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!

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