解:设有龙眼树x棵,则荔枝树(1+25%)x棵。根据题意 得 (1+25%)x+x=2700 解得 x=1200答:有龙眼树1200棵.
龙眼树:2700÷(1+25%+1)=1200棵方程:解设龙眼树x棵(1+25%)x+x=27009/4 x=2700x=1200
2700÷(1+1+25%)=1200