Math Problem Statement
某火车站检票前开始排队,假若前来排队检票的人数均匀增加,若开一个检票口,需要 20 分钟可以检完;若开两个检票口,需要 8 分钟可以检完;若开三个检票口,需要多少分 钟可以检完?
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Rates
Formulas
N = r × time
N = 2r × time
Theorems
Proportionality in linear systems
Suitable Grade Level
Grades 8-10
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