Two cars, A and B, drive from A and B at the same time. When A has traveled 3/5 of the way, B has traveled 90% of the way. At this time, the distance between the two cars is 120 kilometers. How many miles is the distance between B and B?
甲乙两辆汽车分别从A、B两地同时相向开出，当甲车行了全程的(3/5)时，乙车行了全程的90%，此时两车相距120千米，A、B两地相距多少千米？
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(9/10) - (2/5)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">120 / (1/2)</gadget>
<output>240</output>

<result>240</result>