Uncle Wang drove from the county seat to Liu Village for errands, traveling 70 kilometers per hour, and arrived in 3 hours. When he came back, it took 5 hours due to the weather. How far is it from the county seat to Liu Village? How many kilometers per hour did you travel on average when you returned?
王叔叔从县城开往刘村办事，每小时行70千米，3小时到达，回来时因为天气原因用了5小时．从县城到刘村有多远？返回时平均每小时行多少千米？
<gadget id="calculator">70 * 3</gadget>
<output>210</output>

<gadget id="calculator">210 / 5</gadget>
<output>42</output>

<result>42</result>