In the parking lot there are 38 vehicles, 21 of them are buses, and the rest are cars. The color of 23 vehicles is red, of which 15 are buses. How many cars can be found in the parking lot which are not colored red? Answers: A) 7 B) 8 C) 9 D) 10 E) 11
The number of cars is 38-21= 
<gadget id="calculator">38-21</gadget>
<output>17</output>
17.   The number of red cars is   23-15= 
<gadget id="calculator">  23-15</gadget>
<output>8</output>
8.   The number of cars which are not red is  17-8= 
<gadget id="calculator"> 17-8</gadget>
<output>9</output>
9.   The answer is 9.
<result>C</result>
In the parking lot there are 38 vehicles, 21 of them are buses, and the rest are cars. The color of 23 vehicles is red, of which 15 are buses. How many cars can be found in the parking lot which are not colored red?