Of the 75 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?	Options
A) 10 B) 15 C) 20 D) 25 E) 30
Neither 20ar nor Garage   = Total - Garage - (Swim - 20ommon)   = 75 - 50 - (40-35) = 75-55= 
<gadget id="calculator">75-55</gadget>
<output>20</output>
20   Answer 20
<result>C</result>
Of the 75 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?