Two cars transport stones, and each car transports the same weight each time. The first car transports 37 times, a total of 129.5 tons is transported, and the second car transports 77 times. How many tons more did the second car carry than the first?
两辆汽车运石头，每辆汽车每次运的重量相等，第一辆汽车运了37次，一共运129.5吨，第二辆汽车运了77次．第二辆汽车比第一辆汽车多运多少吨？
<gadget id="calculator">129.5 / 37</gadget>
<output>3.5</output>

<gadget id="calculator">3.5 * 77</gadget>
<output>269.5</output>

<gadget id="calculator">269.5 - 129.5</gadget>
<output>140</output>

<result>140</result>