The engineering team wanted to dig a canal. It was planned to dig 64 meters per day, and the digging was completed in 15 days. The task was actually completed 3 days ahead of schedule. How many meters was actually dug per day?
工程队要挖一条水渠，计划每天挖64米，15天挖完，实际提前3天完成任务，实际每天挖几米？
<gadget id="calculator">15 - 3</gadget>
<output>12</output>

<gadget id="calculator">15 / 12</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">64 * (5/4)</gadget>
<output>80</output>

<result>80</result>