How many even integers n, where 100 <= n <= 200, are divisible neither by seven nor by nine?
Choose one: A) 37 B) 38 C) 39 D) 40 E) 46
total 51 even integers   out of which 7 will be divided by 7 and 6 will be divided by 9   (for 7..find intervals of 14 as we are taking even numbers   112,126...196   (for 9..find intervals of 18 as we are taking even numbers   108,126...198)   126 is common   so  51-7-6+1= 
<gadget id="calculator"> 51-7-6+1</gadget>
<output>39</output>
39 will not be divided by 7 or 9   ANSWER:39
<result>C</result>
How many even integers n, where 100 <= n <= 200, are divisible neither by seven nor by nine?