Two cars A and B set off from the east and west cities at the same time at 8 o'clock in the morning. At 10 o'clock, the distance between the two cars is 150 kilometers, and they continue to drive until 1 o'clock in the afternoon. How many kilometers is the distance between the cities?
甲、乙两辆汽车上午8时分别从东、西两城同时相向出发，到10时两车相距150千米，继续行进到下午1时，两车还是相距150千米，求东、西两城间的距离是多少千米？
<gadget id="calculator">150 + 150</gadget>
<output>300</output>

<gadget id="calculator">13 - 10</gadget>
<output>3</output>

<gadget id="calculator">300 / 3</gadget>
<output>100</output>

<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<gadget id="calculator">100 * 2</gadget>
<output>200</output>

<gadget id="calculator">200 + 150</gadget>
<output>350</output>

<result>350</result>