What is the street value 0f 20 pounds of marijuana?

depends on quality. Cheap is 20 to 30 a 1/4 ounce and good is 40-60 an oz. Some of the Medicinal smoke is upwards of 120 to 150 an 1/4 oz. so if its okay to good, Ill say 50 a 1/4 to make the numbers easy. 4 1/4's per oz. 12 oz in 1 pound 20 pounds. If it were truly 20 pounds, measured out in to 1/4 bags you should have 960 1/4 bags x 20 = 48,000 so you would have an appx value of 48grand. Good luck though. Thats a lot to get rid of without trouble.