The survival rate of one kind of sapling is 94%. In order to ensure the survival of 47 saplings, at least how many saplings should be planted.
一种树苗的成活率为94%，为保证成活47棵，至少要栽多少棵树苗．
<gadget id="calculator">94 / 100</gadget>
<output>47/50 = around 0.94</output>

<gadget id="calculator">47 / (47/50)</gadget>
<output>50</output>

<result>50</result>