The motorcycle and the bicycle are traveling towards each other from places A and B which are 260 kilometers apart. The bicycle starts at 13:00, and the motorcycle starts at 14:00. At 17:00, the two cars have 20 kilometers to meet each other. It is known that the speed of the motorcycle is 4 times that of the bicycle, how many kilometers is the distance between the motorcycle and the place B at 18 o'clock.
摩托车和自行车分别从相距260千米的A、B两地相向而行，自行车于13时出发，摩托车于14时出发，在17时两车还有20千米才相遇．已知摩托车的速度是自行车的4倍，18时摩托车离B地多少千米．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">17 * (1/4)</gadget>
<output>17/4 = around 4.25</output>

<gadget id="calculator">13 * (1/4)</gadget>
<output>13/4 = around 3.25</output>

<gadget id="calculator">(17/4) - 14 - (13/4)</gadget>
<output>-13</output>

<gadget id="calculator">17 + (-13)</gadget>
<output>4</output>

<gadget id="calculator">240 / 4</gadget>
<output>60</output>

<gadget id="calculator">18 - 14</gadget>
<output>4</output>

<gadget id="calculator">60 * 4</gadget>
<output>240</output>

<gadget id="calculator">260 - 240</gadget>
<output>20</output>

<result>20</result>