The engineering team has been repairing a 9.6-kilometer-long canal for 4 days, 0.65 kilometers per day, and the rest will take 7 days to complete. How many miles per day on average?
工程队修一条长9.6千米的水渠，已经修了4天，每天修0.65千米，剩下的要7天修完．平均每天修多少千米？
<gadget id="calculator">0.65 * 4</gadget>
<output>2.6</output>

<gadget id="calculator">9.6 - 2.6</gadget>
<output>7</output>

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

<result>1</result>