Company R uses one of three solvents to clean hot tubs. The following data is available:

Solvent 1 Solvent 2 Solvent 3

Materials efficiency variance $40,000 U $30,000 U $48,000 U

Materials price variance $42,000 F $25,000 F $21,000 U

Hot tubs cleaned using this solvent 100,000 110,000 125,000

Two pounds of each kind of solvent for each hot tub cleaning requiring that kind of solvent was allowed by the budget. For Solvent 1, the average price paid was $0.20 per pound less than the standard; for Solvent 2, the average price paid was $0.10 per pound less than the standard; for Solvent 3, the average price paid was $0.07 per pound more than the standard. All solvents were purchased and used during the month (no inventory).

Question: How many pounds of material was purchased for Solvent 2?