桃树棵数×2.5=苹果树棵数1,用方程解,设桃树有x棵2.5x+x=182x=182÷3.5x=522.5x=2.5×52=1302,算术方法182÷(1+2.5)=182÷3.5=52(棵)桃树52×2.5=130(棵)苹果树
桃树:182÷(2.5+1)=52(棵)苹果树:182-52=130(棵)