2 guest bedrooms are 200 sq ft each for a total of 2*200 = <<2*200=400>>400 sq ft
The master suite has 500 sq ft, the guest rooms have 400 sq ft and the rest of the house is 600 sq ft for a total of 500+400+600 = <<500+400+600=1500>>1,500 sq ft
The rent is $3,000 for 1,500 sq ft of house so 3000/1500 = $<<3000/1500=2>>2 per sq ft of house
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