Two cars drive from two places 400 kilometers apart at the same time. After 3 hours, the distance is still 10 kilometers. It is known that one car travels 55 kilometers per hour. Find the speed of the other car? (answer in two ways)
两辆汽车从相距400千米的两地同时相对开出，3小时后还相距10千米，已知一辆汽车每小时行驶55千米，求另一辆汽车速度？(用两种方法解答)
<gadget id="calculator">55 * 3</gadget>
<output>165</output>

<gadget id="calculator">400 - 165 - 10</gadget>
<output>225</output>

<gadget id="calculator">225 / 3</gadget>
<output>75</output>

<result>75</result>