把数学知识与实际生活结合起来,进行方案设计,选择最佳方案的一类问题,是经常出现的一种题型,现以分式方程的应用为例予以说明.例1甲、乙两个工程队各有20人,两队合做某项工程10天后,因甲队另有任务,乙队又单独做了2天才完成.已知单独完成这项工程,甲队比乙队可 A type of problem that combines mathematical knowledge with real life, carries out program design, and selects the best solution is a frequently occurring question type. Now, the application of fractional equations is used as an example. Example 1 A and B 2 The engineering team has 20 people each. After the two teams have cooperated for a certain project for 10 days, because of A team’s other tasks, team B did two separate days to finish. Knowing that this project was done by itself, A team can be better than B team.