作业帮 > 英语 > 作业

英语翻译three pipes a ,b and c can fill a tank in 6 hours .after

来源:学生作业帮 编辑:百度作业网作业帮 分类:英语作业 时间:2024/07/01 00:36:00
英语翻译
three pipes a ,b and c can fill a tank in 6 hours .after working at it together for 2 hours .c is closed and a and b can fill the remaining part in 7 hours .the number of hours taken by c alone to fill the tank is
英语翻译three pipes a ,b and c can fill a tank in 6 hours .after
三管A,B和C可以在6小时内充满一个水箱.
在一起工作2小时后,C关闭,A和B用7个小时可以充满剩余的部分.
单独的由C来填充,要几小时?