Two pipes together can fill a tank in 2 hours. One of the pipes used alone takes 3 hours longer than the other to fill the tank. How long does it take the slower pipe to fill the tank alone?

Working alone, the faster pipe can do the work in 3 hrs; the slower pipe can do the work in 6 hrs.

Step-by-step explanation:

1: -2 3/4, -2 1/2, -14, 0, 3, 8 1/3

2: -4, -3, -2 1/2, -2 1/4, 3 1/4,

step-by-step explanation: