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近年来的中考中,与分式方程有关的应用题屡见不鲜.下面介绍几例,供参考.例1(2006年长沙市)在社会主义新农村建设中,某乡镇决定对一段公路进行改造.已知这项工程由甲工程队单独做需要40天完成;如果由乙工程队先单独做10天,那么剩下的工程还需要两队合做20天才能完成.求乙工程队单独完成这项工程所需的天数.
In recent years, in the middle school entrance examination, applications related to fractional equations are not uncommon. Here are some examples for reference: Case 1 (Changsha, 2006) In the construction of a new socialist countryside, a township decided to reconstruct a section of road. Knowing that this project will be completed by the A project team alone will take 40 days to complete; if the B project team first performs 10 days separately, then the remaining project will require two teams to complete 20 days to complete. The B engineering team will complete this alone. The number of days required for the project.