How many numbers from 10 to 40 are exactly divisible by 3?	Answers:
A) 13 B) 15 C) 16 D) 10 E) 18
12, 15, 18, 21, 24, 27, 30, 33, 36, 39.   10 Numbers.   10/3 = 3 and 40/3 = 13 ==&gt; 13 - 3= 
<gadget id="calculator">13 - 3</gadget>
<output>10</output>
10. Therefore 10 digits   10)
<result>D</result>
How many numbers from 10 to 40 are exactly divisible by 3?