Form 4 Chapter 2 Quadratic Equations 01
Tuesday, February 26th, 2008有位学生在网上论坛提出这道数学题，寻求帮助。我看了一看，心里也“痒”了，就尝试回答这道问题。我把解答步骤贴在此，希望有兴趣的学生也可从此网站学习高级数学。
A rectangular tank can be filled with water by 2 pipes in 6 minutes. If the larger pipe alone takes 5 minutes less to fill the tank than the smaller pipe, find the possible time each pipe will take to fill the tank. (Hint: use the concept of rate of flow.)
