A road is 900 meters long and has been repaired for 5 days, averaging 138 meters per day. The rest will take two days to finish. How many meters are repaired on average per day?
一条公路长900米，已经修了5天，平均每天修138米．剩下的要两天修完，平均每天修多少米？
<gadget id="calculator">138 * 5</gadget>
<output>690</output>

<gadget id="calculator">900 - 690</gadget>
<output>210</output>

<gadget id="calculator">210 / 2</gadget>
<output>105</output>

<result>105</result>