Lot "X" is an acre. Lot "Z" is 2/3 of the size of lot "X." Lot Z was purchased for $16,000. The two lots were divided into as many parcels as possible, all measuring 110' by 82.5' each. Each parcel was sold for $6,500. The total selling price was 25% profit on the original investment. What was the purchase price of lot "X?"
