The car travels 120 kilometers per hour, the speed of the motorcycle is (5/8) of the car, and the speed of the bicycle is (2/5) of the motorcycle. How many kilometers per hour does the bicycle travel?
汽车每小时行120千米，摩托车的速度是汽车的(5/8)，自行车的速度是摩托车的(2/5)．自行车每小时行多少千米？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">120 * (5/8) * (2/3)</gadget>
<output>50</output>

<result>50</result>