The road repair team built a total of 451 kilometers of roads in the first 3 days, and 162 kilometers a day in the next 4 days. How many kilometers are repaired on average per day?
修路队前3天共修路451千米，后4天每天修162千米，平均每天修多少千米？
<gadget id="calculator">162 * 4</gadget>
<output>648</output>

<gadget id="calculator">648 + 451</gadget>
<output>1_099</output>

<gadget id="calculator">3 + 4</gadget>
<output>7</output>

<gadget id="calculator">1_099 / 7</gadget>
<output>157</output>

<result>157</result>