I have two quadratic work problems that I REALLY need help with. It would be great if someone could supply some help relativly soon if possible.

1. Working alone, Colleen can paint a house in 2 hours less than James. Working together, they can paint the house in 10 hours. How long would it take James to paint the house by himself?

2. Together, Maria and Johannes can pick a bushel of apples in 16 minutes. Maria takes 4 minutes more to pick a bushel than Johannes does. Find the time it takes each person to pick a bushel of apples alone.

Thank you!