sum of 19 odd numbers is?	Pick one.
A) 341	B) 351	C) 361	D) 371	E) 381
<gadget id="calculator">19 * 2</gadget>
<output>38</output>

<gadget id="calculator">19 / 2</gadget>
<output>19/2 = around 9.5</output>

<gadget id="calculator">38 * (19/2)</gadget>
<output>361</output>

<result>C</result>
sum of 19 odd numbers is?
multiply(multiply(19, const_2), divide(19, const_2))
"sum of 1 st n odd no . s = 1 + 3 + 5 + 7 + . . . = n ^ 2 so , sum of 1 st 19 odd numbers = 19 ^ 2 = 361 answer : c"