Passenger and freight trains leave from A and B respectively at the same time. It is known that the speed ratio of passenger and freight trains is 4:5. After the two vehicles met on the way, they continued driving. The speed of the passenger car increases by 20%, and the speed of the truck remains unchanged. After another 4 hours, the truck arrives at point A, and the bus is still 116 kilometers away from point B. How many kilometers are there between A and B?
客、货两车分别从A，B两地同时相对开出，已知客、货两车的速度比是4：5．两车在途中相遇后，继续行驶．客车把速度提高20%，货车速度不变，再行4小时后，货车到达A地，而客车离B地还有116千米．A，B两地相距多少千米？
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">4 + 5</gadget>
<output>9</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">(4/9) / 4</gadget>
<output>1/9 = around 0.111111</output>

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

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(1/9) * (4/5) * (6/5) * 4</gadget>
<output>32/75 = around 0.426667</output>

<gadget id="calculator">(5/9) - (32/75)</gadget>
<output>29/225 = around 0.128889</output>

<gadget id="calculator">116 / (29/225)</gadget>
<output>900</output>

<result>900</result>