On a map with a scale of 1:35000000, the distance from Yantai to Jinan is measured to be 1.5 cm. Two passenger cars, A and B, depart from Yantai and Jinan at the same time, and meet each other after 3 hours. It is known that car A travels 85 kilometers per hour, how many kilometers per hour does car B travel?
在比例尺是1：35000000的地图上，量得烟台到济南的距离是1.5厘米．甲乙两辆客车分别从烟台、济南两地同时相对开出，3小时后相遇，已知甲车每小时行85千米，乙车每小时行多少千米？
<gadget id="calculator">1 / 35_000_000</gadget>
<output>1/35_000_000 = around 0</output>

<gadget id="calculator">1.5 / (1/35_000_000) / 100_000 / 3</gadget>
<output>175</output>

<gadget id="calculator">175 - 85</gadget>
<output>90</output>

<result>90</result>