How many integers from 20 to 150, inclusive, are divisible by 3 but not divisible by 7?
Pick one:
A) 37	B) 40	C) 42	D) 45	E) 55
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 20 to 150, inclusive is   (147-21)/21+1= 
<gadget id="calculator">  (147-21)/21+1</gadget>
<output>7</output>
7;    44-7= 
<gadget id="calculator"> 44-7</gadget>
<output>37</output>
37.   37nswer: 37.
<result>A</result>
How many integers from 20 to 150, inclusive, are divisible by 3 but not divisible by 7?