A is processing a batch of parts. On the first day, he processed half of the pile of parts and 10 parts. On the second day, he processed the remaining half and 10 parts. There were still 25 parts left unprocessed. How many parts are in this batch.
甲在加工一批零件，第一天加工了这堆零件的一半又10个，第二天又加工了剩下的一半又10个，还剩下25个没有加工．这批零件有多少．
<gadget id="calculator">25 + 10</gadget>
<output>35</output>

<gadget id="calculator">35 * 2</gadget>
<output>70</output>

<gadget id="calculator">70 + 10</gadget>
<output>80</output>

<gadget id="calculator">80 * 2</gadget>
<output>160</output>

<result>160</result>