If the minute hand of a clock is 10 cm long, how many meters is the tip of the clock moving 6 times?
一个时钟，它的分针长10cm，则它的尖端走动6周是多少米．
<gadget id="calculator">6 / 100</gadget>
<output>3/50 = around 0.06</output>

<gadget id="calculator">2 * 3.14 * 10 * (3/50)</gadget>
<output>3.768</output>

<result>3.768</result>