book has 112 pages. Xiao Ming starts from the first page. He reads (1/7) of it on the first day, and reads 12.5% less than the first day on the second day. How many pages should he read on the third day?
一本书有112页，小明从第一页看起，第一天看了它的(1/7)，第二天比第一天少看12.5%，第三天应从第多少页看起．
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">112 * (1/7)</gadget>
<output>16</output>

<gadget id="calculator">12.5 / 100</gadget>
<output>0.125</output>

<gadget id="calculator">1 - 0.125</gadget>
<output>0.875</output>

<gadget id="calculator">16 * 0.875</gadget>
<output>14</output>

<gadget id="calculator">16 + 14</gadget>
<output>30</output>

<gadget id="calculator">30 + 1</gadget>
<output>31</output>

<result>31</result>