When a car travels from A to B, the uphill distance takes up (3/5) and the downhill distance takes up (2/5). It is known that the time spent going uphill is three times that of going downhill. How many times the speed of going downhill is the speed of going uphill.
一辆汽车从甲地到乙地，其中上坡的路程占(3/5)，下坡的路程占(2/5)，已知上坡用的时间是下坡用的时间的3倍，则下坡的速度是上坡速度的多少倍．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) / 1</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) / 3</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(2/5) / (1/5)</gadget>
<output>2</output>

<result>2</result>