The lifespan of a tortoise can reach 116 years, which is 16 years more than twice the lifespan of a tiger. How long is the lifespan of a tiger?
乌龟的寿命可达到116年，比老虎寿命的2倍还多16年，老虎的寿命是多少年？
<gadget id="calculator">116 - 16</gadget>
<output>100</output>

<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<result>50</result>