The flight speed of a fighter jet is 4000 km/h, which is 700 km more than three times the speed of a supersonic aircraft. How many kilometers does a supersonic aircraft fly per hour?
战斗机的飞行速度是4000千米/时，比超音速飞机速度的3倍还多700千米，超音速飞机每小时飞行多少千米？
<gadget id="calculator">4_000 - 700</gadget>
<output>3_300</output>

<gadget id="calculator">3_300 / 3</gadget>
<output>1_100</output>

<result>1_100</result>