The diameter of the outlet of a certain brand of toothpaste is 6mm. Xiaohong squeezes out 1cm long toothpaste every time she brushes her teeth. Such a toothpaste can be used 50 times. The total capacity of the new packaging of this brand of toothpaste remains unchanged, but the diameter of the outlet is changed to 5mm. Xiaohong still squeezes out 1cm of toothpaste each time according to her habit. How many times can a new package of toothpaste Xiaohong be used?
某品牌牙膏出口处直径为6mm，小红每次刷牙都挤出1cm长的牙膏，这样一支牙膏可用50次．该品牌牙膏推出的新包装总容量不变，只是将出口处直径改为5mm，小红还是按习惯每次挤出1cm长的牙膏．一支新包装的牙膏小红能用多少次？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 1 * 10 * 50</gadget>
<output>14_130</output>

<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">(5/2) ** 2</gadget>
<output>25/4 = around 6.25</output>

<gadget id="calculator">3.14 * (25/4) * 1 * 10</gadget>
<output>196.25</output>

<gadget id="calculator">14_130 / 196.25</gadget>
<output>72</output>

<result>72</result>