A number of people go hunting together. On average, 10 people get 7 hares, and 15 people get 8 pheasants. 5 people hunted 1 wolf. A total of 43 of the 3 kinds of prey. Then how many people participated in the hunting.
有若干人一起去打猎，平均10人猎得7只野兔，15人猎得8只野鸡．5人猎得1只狼．3种猎物总计43只．则参加打猎的有多少人．
<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">8 / 15</gadget>
<output>8/15 = around 0.533333</output>

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

<gadget id="calculator">(7/10) + (8/15) + (1/5)</gadget>
<output>43/30 = around 1.433333</output>

<gadget id="calculator">43 / (43/30)</gadget>
<output>30</output>

<result>30</result>