Question

6．果園桃樹(shù)200棵，梨樹(shù)250棵．梨樹(shù)比桃樹(shù)多25%；桃樹(shù)比梨樹(shù)少20%．

Answer 1

分析 首先求出梨樹(shù)比桃樹(shù)多多少棵，再用兩種樹(shù)數(shù)量的差除以桃樹(shù)的數(shù)量，求出梨樹(shù)比桃樹(shù)多百分之幾；然后用兩種樹(shù)數(shù)量的差除以梨樹(shù)的數(shù)量，求出桃樹(shù)比梨樹(shù)少百分之幾即可．

解答 解：梨樹(shù)比桃樹(shù)多：
（250-200）÷200
=50÷200
=0.25
=25%
桃樹(shù)比梨樹(shù)少：
（250-200）÷250
=50÷250
=0.2
=20%
答：梨樹(shù)比桃樹(shù) 25%；桃樹(shù)比梨樹(shù)少20%．
故答案為：25、20．

點(diǎn)評(píng) 此題主要考查了百分?jǐn)?shù)的實(shí)際應(yīng)用，要熟練掌握，解答此題的關(guān)鍵是弄清楚題中的等量關(guān)系．