Cars A and B start from A and B at the same time, drive towards each other, and meet each other after 4 hours. After the meeting, the two cars are still moving forward at the same speed, and after another 5 hours, the second car arrives at point A, and at this time, the first car has surpassed point B by 90 kilometers. How many kilometers are there between A and B?
甲、乙两车同时从A，B两地出发，相向而行，经过4小时相遇．相遇后两车仍按原速前进、又经过5小时，乙车到达A地，这时甲车已超过B地90千米．A，B两相距多少千米？
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(5/4) - 1</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">90 / (1/4)</gadget>
<output>360</output>

<result>360</result>