A large dictionary is divided into upper and lower layers. The upper layer is 2.4 cm thick, with a total of 252 pages. The lower layer is 3.6 cm thick, approximately how many pages are there?
一套大词典分上下两层．上层厚2.4厘米，一共252页．下层厚3.6厘米，大约有多少页？
<gadget id="calculator">252 / 2.4</gadget>
<output>105</output>

<gadget id="calculator">105 * 3.6</gadget>
<output>378</output>

<result>378</result>