When the construction team builds a road, the ratio of completed to unrepaired is 3:2. If another 5 kilometers are built, the ratio of completed to unrepaired becomes 4:1. How long is this road in kilometers? (answer in two ways)
工程队修一条路，已修与未修的比是3：2，如果再修5千米，已修与未修的比就变成了4：1，这条路全长多少千米？(用两种方法解答)
<gadget id="calculator">4 * 5</gadget>
<output>20</output>

<gadget id="calculator">5 + 20</gadget>
<output>25</output>

<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3 + 2</gadget>
<output>5</output>

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

<gadget id="calculator">(4/5) - (3/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">25 / 5 / (1/5)</gadget>
<output>25</output>

<result>25</result>