There are some peaches on the tree. Several monkeys ate 20% of the total number of peaches on the first day, and 37.5% of the remaining peaches on the second day. At this time, there are still 50 peaches on the tree. How many peaches are there in total on the tree? ?
树上有一些桃，几只猴子第一天吃了桃子总数的20%，第二天吃了余下桃子数的37.5%，这时树上还有50只桃子，原来树上总共有多少只桃子？
<gadget id="calculator">37.5 / 100</gadget>
<output>0.375</output>

<gadget id="calculator">1 - 0.375</gadget>
<output>0.625</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">50 / 0.625 / (4/5)</gadget>
<output>100</output>

<result>100</result>