It takes (6/5) minutes for a car to pass through a 1.5 km long tunnel. At this speed, how many kilometers per hour does the car travel?
一辆汽车通过一条长1.5千米的隧道用了(6/5)分．照这样的速度，这辆汽车每小时行多少千米？
<gadget id="calculator">1.5 / 0.02</gadget>
<output>75</output>

<result>75</result>