There are two ropes, the second one is longer than the first one (1/5), the first one is known to be 20 meters long, how long is the second one?
有两条绳，第二条比第一条长(1/5)，已知第一条长20米，第二条长多少米？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">20 * (6/5)</gadget>
<output>24</output>

<result>24</result>