The large cart transports 1.3 tons each time, and the small cart transports 1.2 tons each time. After how many times, the large cart transports 2.4 tons more than the small cart.
大车每次运货1.3吨，小车每次运1.2吨，运多少次后大车比小车多运2.4吨．
<gadget id="calculator">1.3 - 1.2</gadget>
<output>0.1</output>

<gadget id="calculator">2.4 / 0.1</gadget>
<output>24</output>

<result>24</result>