A worker makes a batch of parts, 45 parts per day in the first 3 days, and a total of 187 parts in the next 4 days, so how many parts does this worker complete every day on average this week?
一个工人做一批零件，前3天每天做45个，后四天共完成187个，那么这个工人这个星期平均每天完成多少个？
<gadget id="calculator">45 * 3</gadget>
<output>135</output>

<gadget id="calculator">135 + 187</gadget>
<output>322</output>

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

<gadget id="calculator">322 / 7</gadget>
<output>46</output>

<result>46</result>