The landscaping team wanted to plant a batch of saplings. On the first day they planted 1/5 of the total number, and on the second day they planted 136. At this time, the ratio of the remaining to the number of saplings planted was 3:5. How many saplings are there in total?
园林绿化队要栽一批树苗，第一天栽了总数的(1/5)，第二天栽了136棵，这时剩下的与已栽的棵数的比是3：5．这批树苗一共有多少棵．
<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(5/8) - (1/5)</gadget>
<output>17/40 = around 0.425</output>

<gadget id="calculator">136 / (17/40)</gadget>
<output>320</output>

<result>320</result>