A group of Metasequoia saplings will be planted around the "Hundreds of Surnames" square, and the survival rate of these saplings is 75% to 80%. Plant 1000 saplings, at least how many saplings can be guaranteed to survive.
"百家姓"广场周围要栽一批水杉树苗，这批树苗的成活率是75%～80%．栽1000棵树苗，至少能保证成活多少棵．
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1_000 * (3/4)</gadget>
<output>750</output>

<result>750</result>