The flight of the plane is 850 kilometers per hour, which is 50 kilometers less than 5 times the distance traveled by the motor vehicle per hour. How many kilometers does the train travel per hour?
飞机每时飞行850千米，比动车每时行驶距离的5倍少50千米．动车每时行驶多少千米？
<gadget id="calculator">850 + 50</gadget>
<output>900</output>

<gadget id="calculator">900 / 5</gadget>
<output>180</output>

<result>180</result>