certain grade sent 34 boys to the Wenchuan disaster area to give condolences, which is 15% less than the number of girls. How many girls were sent?
某年级选派了34名男生去汶川灾区慰问，比女生人数少15%，选派了多少名女生？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 - (3/20)</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">34 / (17/20)</gadget>
<output>40</output>

<result>40</result>