Xiao Ding Ding’s domestic phone bill in November and December totaled 86 yuan. According to regulations, the monthly rental fee is 25 yuan, and the call is 60 minutes. If it exceeds 60 minutes, it will be charged at 0.10 yuan per minute. How many minutes is the average monthly call time per month?
小丁丁家11月份、12月份的市内电话费共计86元，按规定，每月月租费25元，打60分钟电话，若超过60分钟，按每分钟0.10元收费，小丁丁家这两个月平均月通话时间为多少分钟？
<gadget id="calculator">25 * 2</gadget>
<output>50</output>

<gadget id="calculator">86 - 50</gadget>
<output>36</output>

<gadget id="calculator">36 / 0.1</gadget>
<output>360</output>

<gadget id="calculator">360 + 60 + 60</gadget>
<output>480</output>

<gadget id="calculator">480 / 2</gadget>
<output>240</output>

<result>240</result>