The school needs to plant a batch of saplings. The survival rate of such saplings is generally 75%-80%. If 1500 saplings are to be planted alive, how many should be planted at most?
学校要栽种一批树苗，这种树苗的成活率一般为75%-80%，如果要栽活1500棵树苗，那么最多应栽多少棵．
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1_500 / (3/4)</gadget>
<output>2_000</output>

<result>2_000</result>