Find the average of all numbers between 1 and 13 which are divisible by 2
Choose one: A) 15 B) 21 C) 25 D) 30 E) 35
Explanation:   Average=(2+4+6+8+10+12 )/ 2=42 / 2= 
<gadget id="calculator">42 / 2</gadget>
<output>21</output>
21   Option 21
<result>B</result>
Find the average of all numbers between 1 and 13 which are divisible by 2