The distance between A and B is 332 kilometers. The two cars leave from the two places at the same time and meet each other after 4 hours. The express train travels 48 kilometers per hour. How many kilometers per hour does the slow train travel? (answer in two ways)
甲乙两地相距332千米，两车从两地同时相对开出，4小时后相遇，快车每小时行48千米，慢车每小时行多少千米？(用两种方法解答)
<gadget id="calculator">48 * 4</gadget>
<output>192</output>

<gadget id="calculator">332 - 192</gadget>
<output>140</output>

<gadget id="calculator">140 / 4</gadget>
<output>35</output>

<result>35</result>