设鸭蛋X个鸡蛋Y个麻雀但Z个列三元一次不等式组4X+3Y+0.25Z=100X+Y+Z=100化简一下X=(300-11Y)/15根据X是正整数,讨论当Y=15X=9时符合所以X=9Y=15Z=76
解：设鸭蛋x个，鸡蛋y个，麻雀蛋z个。4x+3y+1/4z=100x+y+z=100解出x、y、z就OK了
