The large truck and the small truck transport goods together, the small truck transports 10 times, and the large truck transports 8 times, a total of 200 tons of goods are transported. Small trucks transport 8 tons each time, how many tons are large trucks transported each time?
大货车和小货车一起运货物，小货车运10次，大货车运8次，一共运货物200吨．小货车每次运8吨，大货车每次运多少吨？
<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<gadget id="calculator">200 - 80</gadget>
<output>120</output>

<gadget id="calculator">120 / 8</gadget>
<output>15</output>

<result>15</result>