The plane can fly 1200 kilometers per hour, the speed of the train is (1/6) of the speed of the plane, and the speed of the speedboat is (2/5) of the speed of the train. How many kilometers per hour does the speedboat travel?
飞机每小时可飞行1200千米，火车的速度是飞机的(1/6)，快艇的速度是火车速度的(2/5)，快艇每小时行多少千米？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1_200 * (1/6) * (2/5)</gadget>
<output>80</output>

<result>80</result>