The speed of the train is 120km per hour, which is equivalent to (1/15) of a supersonic aircraft. How many kilometers per hour does this plane fly? (solution by equation)
火车的速度是每小时行驶120km，相当于一种超音速飞机的(1/15)．这种飞机每小时飞行多少千米？(用方程解)
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">120 / (1/15)</gadget>
<output>1_800</output>

<result>1_800</result>