how many of the integers between 20 and 80 are even?
Choose the correct answer
A) 21 B) 30 C) 11 D) 10 E) 9
<gadget id="calculator">80 - 20</gadget>
<output>60</output>

<gadget id="calculator">60 / 2</gadget>
<output>30</output>

<result>B</result>
how many of the integers between 20 and 80 are even?
divide(subtract(80, 20), const_2)
"number start between 20 to 80 is 60 numbers half of them is even . . which is 30 answer : b"