Xiaohong reads a book. On the first day, she reads 1/4 of the whole book. On the second day, she reads 25 pages, and there are 65 pages left. How many pages did Xiaohong read on the first day?
小红看一本书，第一天看了全书的(1/4)，第二天看了25页，还剩65页没看，小红第一天看了多少页？
<gadget id="calculator">25 + 65</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>

<gadget id="calculator">120 * (1/4)</gadget>
<output>30</output>

<result>30</result>