Of the 70 house in a development, 50 have a two-car garage, 40 have an in-the-ground swimming pool, and 35 have both a two-car garage and an in-the-ground swimming pool. How many houses in the development have neither a two-car garage nor an in-the-ground swimming pool?	Choices.
A) 10
B) 15
C) 20
D) 25
E) 30
Neither Car nor Garage   = Total - Garage - (Swim - Common)   = 70 - 50 - (40-35) = 70-55= 
<gadget id="calculator">70-55</gadget>
<output>15</output>
15   Answer 15
<result>B</result>
Of the 70 house in a development, 50 have a two-car garage, 40 have an in-the-ground swimming pool, and 35 have both a two-car garage and an in-the-ground swimming pool. How many houses in the development have neither a two-car garage nor an in-the-ground swimming pool?