How many integers from 40 to 200, inclusive, are divisible by 3 but not divisible by 7?  Choose the correct choice from the following options:
A) 20  B) 31  C) 35  D) 40  E) 45
We should find # of integers divisible by 3 but not by 3*7= 
<gadget id="calculator">3*7</gadget>
<output>21</output>
21.   # of multiples of 21 in the range from 40 to 200, inclusive is   (189-42)/21+1= 
<gadget id="calculator">  (189-42)/21+1</gadget>
<output>8</output>
8;    53-8= 
<gadget id="calculator"> 53-8</gadget>
<output>45</output>
45.   Answer: 45.
<result>E</result>
How many integers from 40 to 200, inclusive, are divisible by 3 but not divisible by 7?