The height of stacking 6 books of the same thickness is 14 cm. If 15 books of the same thickness are stacked, what is the new height in cm?
将6本相同厚度的书叠起来的高度是14厘米，如果将15本这样相同厚度的书叠起来，那么新的高度是多少厘米．
<gadget id="calculator">14 / 6</gadget>
<output>7/3 = around 2.333333</output>

<gadget id="calculator">(7/3) * 15</gadget>
<output>35</output>

<result>35</result>