Students A and B originally planned to spend the same amount of time on self-study every day. If A increases the time for self-study by half an hour and B reduces the time for self-study by half an hour every day, then B’s 6 days of self-study is only equal to A’s 1 day of self-study. Question: How much time did A and B originally set for self-study each day?
甲、乙两位学生原计划每天自学的时间相同，若甲每天增加自学时间半小时，乙每天减少自学时间半小时，则乙自学6天的时间仅相等于甲自学1天的时间．问：甲乙原订每天自学的时间是多少？
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">60 / 5</gadget>
<output>12</output>

<gadget id="calculator">12 + 30</gadget>
<output>42</output>

<result>42</result>