Find work done in pulling the bucket to the top of the well.?

A bucket that weighs 4 lb and a rope of negligible weight are used to draw water from a awell that is 80 ft deep. The bucket starts with 40 lb of water and is pulled up at a rate of 2 ft/s but water leaks out of a hole at a rate of 0.2lb/s. Find the work done in pulling the bucket to the top of the well.