The sum of three consecutive natural numbers is 120, what is the largest of these three numbers?
三个连续的自然数和是120，这三个数中最大的那个数是多少．
<gadget id="calculator">120 / 3</gadget>
<output>40</output>

<gadget id="calculator">40 + 1</gadget>
<output>41</output>

<result>41</result>