The distance between A and B is 600 kilometers. Two cars, passenger and freight, drive towards each other at the same time and meet each other 4 hours later. It is known that the speed of the passenger car is (7/8) that of the truck, how many kilometers does the truck travel per hour?
A、B两城相距600千米，客、货两车同时从两地相向而行，4小时后相遇．已知客车的速度是货车的(7/8)，货车每小时行多少千米？
<gadget id="calculator">600 / 4</gadget>
<output>150</output>

<gadget id="calculator">8 + 7</gadget>
<output>15</output>

<gadget id="calculator">8 / 15</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">150 * (8/15)</gadget>
<output>80</output>

<result>80</result>