Xiaoqiang reads a story book. He reads 25 pages on the first day, 5 pages more than the first day on the second day, and 32 pages on the third day. How many pages do he read on average every day?
小强看一本故事书，第一天看了25页，第二天比第一天多看了5页，第三天看了32页，平均每天看了多少页？
<gadget id="calculator">25 + 5</gadget>
<output>30</output>

<gadget id="calculator">25 + 30 + 32</gadget>
<output>87</output>

<gadget id="calculator">87 / 3</gadget>
<output>29</output>

<result>29</result>