A pile of cement, 70 bags have been used, and the remaining cement is 20 bags more than the original (1/4). How many bags of cement are there in this pile?
一堆水泥，已经用去70袋，剩下的水泥比原来的(1/4)还多20袋．原来这堆水泥有多少袋？
<gadget id="calculator">70 + 20</gadget>
<output>90</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">90 / (3/4)</gadget>
<output>120</output>

<result>120</result>