A car drives from city A to city B at a speed of 48.5 kilometers per hour. After driving for 2.4 hours, it is still 27 kilometers away from the midpoint. How many kilometers is the whole journey?
一辆汽车以每小时48.5千米的速度从A城开往B城，行了2.4小时后离中点还有27千米．全程多少千米？
<gadget id="calculator">48.5 * 2.4</gadget>
<output>116.4</output>

<gadget id="calculator">116.4 + 27</gadget>
<output>143.4</output>

<gadget id="calculator">143.4 * 2</gadget>
<output>286.8</output>

<result>286.8</result>