It takes 14 hours for the car to transport a batch of goods. The time it takes to go is (4/3) times that of the time it comes back. The car goes 20 kilometers per hour slower than when it comes back.
汽车运一批货物，往返共用了14小时，去时所用时间是回来时的(4/3)倍，汽车去时比回来时每小时慢20千米，问汽车往返共行驶了多少千米？
<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">1 + (4/3)</gadget>
<output>7/3 = around 2.333333</output>

<gadget id="calculator">14 / (7/3)</gadget>
<output>6</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">6 * (4/3)</gadget>
<output>8</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/6) - (1/8)</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">20 / (1/24)</gadget>
<output>480</output>

<gadget id="calculator">480 * 2</gadget>
<output>960</output>

<result>960</result>